Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 631 prefixes
782 of the 786 possible NXX blocks are assigned in area code 631 (99.5% of capacity), spread across 54 rate centers and 39 holders. The largest holders are VERIZON NEW YORK, INC. (228 blocks, 29.2%), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (64 blocks, 8.2%), OMNIPOINT COMMUNICATIONS, INC. - NY (55 blocks, 7.0%). Grouped by brand, Verizon accounts for 337 blocks; brand-attributable holders cover 93% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-01-16 to 2025-09-03, with 36 blocks handed out in 2001 alone. 600 blocks (77%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 171 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
782 assigned blocks of 786
54 rate centers
39 holders of record
77% in thousands-block pooling
Largest holders in 631
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| VERIZON NEW YORK, INC. | Verizon | 228 | 29.2% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | Verizon | 64 | 8.2% |
| OMNIPOINT COMMUNICATIONS, INC. - NY | T-Mobile | 55 | 7% |
| CABLEVISION LIGHTPATH, INC. - NY | Altice | 55 | 7% |
| LEVEL 3 COMMUNICATIONS, LLC - NY | Lumen | 53 | 6.8% |
| NEW CINGULAR WIRELESS PCS, LLC - DC | AT&T | 49 | 6.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | Verizon | 44 | 5.6% |
| ONVOY, LLC- NY | Onvoy | 37 | 4.7% |
| TC SYSTEMS, INC. - NY | AT&T | 34 | 4.3% |
| PAETEC ITEL, LLC | Windstream | 32 | 4.1% |
| CSC VOICE, LLC | – | 30 | 3.8% |
| METROPCS, INC. | T-Mobile | 30 | 3.8% |
Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.
Rate centers with their own page
Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.
BRENTWOOD 127FARMINGDL 42RIVERHEAD 40HUNTINGTON 34CENTRAISLP 32AMITYVILLE 31BABYLON 28DEER PARK 27PATCHOGUE 26RONKONKOMA 24SELDEN 24SMITHTOWN 20YAPHANK 17STONYBROOK 15LINDENHST 15PTJEFFERSN 15BAY SHORE 14SAYVILLE 14W COMMACK 13SOUTHAMPTN 12NORTHPORT 12ISLIP 11COMMACK 11BAYPORT 9E HAMPTON 9SHOREHAM 8MIDLAND 8ATLANTIC 8BELLPORT 8KINGS PARK 7HAMPTNBAYS 7EASTPORT 7COLDSPGHBR 7ST JAMES 6SAG HARBOR 6CTRMORICHS 6FIREISLAND 6MONTAUK PT 5WESTHAMPTN 5MATTITUCK 5ORIENT 5GREENPORT 5WADING RIV 5BRIDGEMPTN 4AMAGANSETT 4SOUTHOLD 4WATER MILL 4JAMESPORT 4QUOGUE 4E FIRE IS 3SHELTER IS 3PECONIC 3
All 782 assigned blocks
One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.
| Prefix | Holder of record | Rate center | Assigned | Pooled | In service |
|---|---|---|---|---|---|
| 631-200 | Verizon | BAYPORT | 2003-12-08 | yes | yes |
| 631-201 | Onvoy | AMITYVILLE | 2016-02-08 | yes | yes |
| 631-202 | Onvoy | RONKONKOMA | 2016-02-09 | yes | yes |
| 631-203 | Onvoy | CENTRAISLP | – | yes | yes |
| 631-204 | Verizon | SOUTHAMPTN | – | yes | yes |
| 631-205 | Verizon | YAPHANK | – | yes | yes |
| 631-206 | Verizon | BAY SHORE | – | yes | yes |
| 631-207 | Verizon | PATCHOGUE | – | yes | yes |
| 631-208 | Verizon | RIVERHEAD | – | yes | yes |
| 631-209 | Verizon | SHOREHAM | – | yes | yes |
| 631-210 | Windstream | ISLIP | – | yes | yes |
| 631-212 | Onvoy | COMMACK | 2016-02-15 | yes | yes |
| 631-213 | AT&T | MIDLAND | – | yes | yes |
| 631-214 | CSC VOICE, LLC | DEER PARK | 2015-05-21 | yes | yes |
| 631-215 | T-Mobile | BRENTWOOD | 2016-04-22 | yes | yes |
| 631-216 | Verizon | STONYBROOK | – | – | yes |
| 631-217 | AMERICAN NETWORK, INC. | STONYBROOK | – | – | yes |
| 631-218 | Verizon | SAYVILLE | – | – | yes |
| 631-219 | Verizon | BRENTWOOD | 2003-10-13 | yes | yes |
| 631-220 | T-Mobile | BRENTWOOD | – | – | yes |
| 631-221 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-223 | Verizon | HUNTINGTON | – | yes | yes |
| 631-224 | Verizon | ISLIP | – | – | yes |
| 631-225 | Verizon | LINDENHST | – | – | yes |
| 631-226 | Verizon | LINDENHST | – | – | yes |
| 631-227 | Windstream | FARMINGDL | – | – | yes |
| 631-228 | Verizon | SHOREHAM | – | yes | yes |
| 631-229 | Verizon | AMITYVILLE | – | yes | yes |
| 631-230 | Peerless | MONTAUK PT | 2012-09-06 | yes | yes |
| 631-231 | Verizon | BRENTWOOD | – | – | yes |
| 631-232 | Verizon | CENTRAISLP | – | – | yes |
| 631-233 | Verizon | BRENTWOOD | – | yes | yes |
| 631-234 | Verizon | CENTRAISLP | – | – | yes |
| 631-235 | Verizon | BRENTWOOD | 2002-10-18 | yes | yes |
| 631-236 | Lumen | BRENTWOOD | – | yes | yes |
| 631-237 | Altice | BRIDGEMPTN | 2001-09-25 | yes | yes |
| 631-238 | CSC VOICE, LLC | MONTAUK PT | 2001-09-25 | yes | yes |
| 631-239 | AT&T | NORTHPORT | – | yes | yes |
| 631-240 | Lumen | SMITHTOWN | 2001-10-30 | yes | yes |
| 631-241 | Verizon | BRENTWOOD | 2003-06-05 | yes | yes |
| 631-242 | Verizon | DEER PARK | – | – | yes |
| 631-243 | Verizon | DEER PARK | – | – | yes |
| 631-244 | Verizon | SAYVILLE | – | – | yes |
| 631-245 | AT&T | BRENTWOOD | 2005-08-16 | yes | yes |
| 631-246 | Verizon | STONYBROOK | – | yes | yes |
| 631-247 | AT&T | FARMINGDL | – | yes | yes |
| 631-248 | Peerless | E HAMPTON | 2012-09-06 | yes | yes |
| 631-249 | Verizon | FARMINGDL | – | – | yes |
| 631-250 | CSC VOICE, LLC | ST JAMES | 2013-04-09 | yes | yes |
| 631-251 | Lumen | SAG HARBOR | – | yes | yes |
| 631-252 | Verizon | BRENTWOOD | 2003-02-04 | yes | yes |
| 631-253 | Verizon | MIDLAND | – | yes | yes |
| 631-254 | Verizon | DEER PARK | – | – | yes |
| 631-255 | AT&T | RIVERHEAD | 2002-07-22 | yes | yes |
| 631-256 | AT&T | SAYVILLE | – | yes | yes |
| 631-257 | Altice | SMITHTOWN | 2012-05-30 | yes | yes |
| 631-258 | Verizon | BRENTWOOD | 2002-08-15 | yes | yes |
| 631-259 | Verizon | SOUTHAMPTN | – | yes | yes |
| 631-260 | Verizon | BRENTWOOD | 2014-08-28 | yes | yes |
| 631-261 | Verizon | NORTHPORT | – | – | yes |
| 631-262 | Verizon | NORTHPORT | – | – | yes |
| 631-263 | Verizon | SMITHTOWN | – | – | yes |
| 631-264 | Verizon | AMITYVILLE | – | yes | yes |
| 631-265 | Verizon | SMITHTOWN | – | – | yes |
| 631-266 | Verizon | W COMMACK | – | yes | yes |
| 631-267 | Verizon | AMAGANSETT | – | yes | yes |
| 631-268 | Peerless | SOUTHAMPTN | 2013-04-04 | yes | yes |
| 631-269 | Verizon | KINGS PARK | – | yes | yes |
| 631-270 | Verizon | FARMINGDL | – | yes | yes |
| 631-271 | Verizon | HUNTINGTON | – | – | yes |
| 631-272 | Verizon | CENTRAISLP | – | yes | yes |
| 631-273 | Verizon | BRENTWOOD | – | – | yes |
| 631-274 | Verizon | DEER PARK | – | yes | yes |
| 631-275 | T-Mobile | BRENTWOOD | 2003-07-10 | yes | yes |
| 631-276 | T-Mobile | HAMPTNBAYS | 2002-10-21 | yes | yes |
| 631-277 | Verizon | ISLIP | – | – | yes |
| 631-278 | T-Mobile | BRENTWOOD | 2003-10-21 | yes | yes |
| 631-279 | Spok | BRENTWOOD | – | – | yes |
| 631-280 | SHELCOMM | WESTHAMPTN | 2025-09-03 | – | yes |
| 631-281 | Verizon | ATLANTIC | – | – | yes |
| 631-282 | Verizon | YAPHANK | – | yes | yes |
| 631-283 | Verizon | SOUTHAMPTN | – | – | yes |
| 631-284 | Verizon | RIVERHEAD | – | yes | yes |
| 631-285 | Verizon | RONKONKOMA | – | yes | yes |
| 631-286 | Verizon | BELLPORT | – | – | yes |
| 631-287 | Verizon | SOUTHAMPTN | – | – | yes |
| 631-288 | Verizon | WESTHAMPTN | – | – | yes |
| 631-289 | Verizon | PATCHOGUE | – | – | yes |
| 631-290 | T-Mobile | BABYLON | 2015-07-29 | yes | yes |
| 631-291 | T-Mobile | BRENTWOOD | 2003-07-23 | yes | yes |
| 631-292 | Lumen | KINGS PARK | – | yes | yes |
| 631-293 | Verizon | FARMINGDL | – | yes | yes |
| 631-294 | T-Mobile | YAPHANK | 2002-10-21 | yes | yes |
| 631-295 | Lumen | YAPHANK | – | yes | yes |
| 631-296 | CSC VOICE, LLC | BRIDGEMPTN | 2013-06-28 | yes | yes |
| 631-297 | Windstream | CENTRAISLP | – | yes | yes |
| 631-298 | Verizon | MATTITUCK | – | yes | yes |
| 631-299 | Windstream | BRENTWOOD | – | yes | yes |
| 631-300 | Verizon | BRENTWOOD | – | yes | yes |
| 631-301 | Telnyx | FARMINGDL | 2016-12-05 | yes | yes |
| 631-302 | Onvoy | E FIRE IS | – | yes | yes |
| 631-303 | T-Mobile | AMITYVILLE | 2017-09-01 | yes | yes |
| 631-304 | Verizon | BRENTWOOD | 2015-10-13 | yes | yes |
| 631-305 | AT&T | BRENTWOOD | 2016-02-01 | yes | yes |
| 631-306 | Lumen | DEER PARK | – | yes | yes |
| 631-307 | AT&T | PATCHOGUE | – | yes | yes |
| 631-308 | T-Mobile | BRENTWOOD | 2020-01-08 | yes | yes |
| 631-309 | Altice | AMITYVILLE | 2018-04-13 | yes | yes |
| 631-310 | AT&T | PATCHOGUE | 2017-01-24 | yes | yes |
| 631-312 | AT&T | PATCHOGUE | – | yes | yes |
| 631-313 | Altice | ISLIP | 2018-06-14 | yes | yes |
| 631-314 | Telnyx | BABYLON | – | yes | yes |
| 631-315 | CSC VOICE, LLC | MATTITUCK | 2006-12-16 | yes | yes |
| 631-316 | Verizon | BRENTWOOD | 2007-02-21 | yes | yes |
| 631-317 | AT&T | PATCHOGUE | 2009-12-04 | yes | yes |
| 631-318 | Verizon | AMAGANSETT | 2010-01-27 | yes | yes |
| 631-319 | Verizon | SAYVILLE | 2006-02-03 | yes | yes |
| 631-320 | CSC VOICE, LLC | SELDEN | 2006-08-21 | yes | yes |
| 631-321 | Verizon | BABYLON | – | – | yes |
| 631-322 | Spok | BRENTWOOD | – | – | yes |
| 631-323 | Verizon | ORIENT | – | yes | yes |
| 631-324 | Verizon | E HAMPTON | – | – | yes |
| 631-325 | Verizon | EASTPORT | – | yes | yes |
| 631-326 | Verizon | COMMACK | – | yes | yes |
| 631-327 | AT&T | HUNTINGTON | 2002-08-27 | yes | yes |
| 631-328 | Windstream | BAY SHORE | – | yes | yes |
| 631-329 | Verizon | E HAMPTON | – | – | yes |
| 631-330 | Altice | FARMINGDL | 2011-09-30 | yes | yes |
| 631-331 | Verizon | PTJEFFERSN | – | – | yes |
| 631-332 | AT&T | BRENTWOOD | 2002-02-15 | yes | yes |
| 631-333 | Windstream | GREENPORT | 2009-05-05 | yes | yes |
| 631-334 | T-Mobile | CENTRAISLP | – | yes | yes |
| 631-335 | Verizon | BRENTWOOD | 2003-07-10 | yes | yes |
| 631-336 | T-Mobile | BRENTWOOD | 2010-06-01 | yes | yes |
| 631-337 | Lumen | SAYVILLE | – | yes | yes |
| 631-338 | Verizon | BRENTWOOD | 2004-02-18 | yes | yes |
| 631-339 | Bandwidth | BRENTWOOD | 2010-02-12 | yes | yes |
| 631-340 | Spok | BABYLON | – | – | yes |
| 631-341 | Verizon | YAPHANK | – | yes | yes |
| 631-342 | Verizon | CENTRAISLP | – | yes | yes |
| 631-343 | CSC VOICE, LLC | COMMACK | 2003-09-10 | yes | yes |
| 631-344 | Verizon | YAPHANK | – | – | yes |
| 631-345 | Verizon | YAPHANK | – | yes | yes |
| 631-346 | Bandwidth | SELDEN | 2010-08-19 | yes | yes |
| 631-347 | AT&T | BRENTWOOD | 2023-12-15 | yes | yes |
| 631-348 | Verizon | CENTRAISLP | – | – | yes |
| 631-349 | Onvoy | ORIENT | 2022-01-27 | yes | yes |
| 631-350 | Verizon | HUNTINGTON | – | yes | yes |
| 631-351 | Verizon | HUNTINGTON | – | – | yes |
| 631-352 | T-Mobile | SMITHTOWN | 2010-08-20 | yes | yes |
| 631-353 | Bandwidth | SOUTHAMPTN | 2010-08-26 | yes | yes |
| 631-354 | Lumen | MATTITUCK | – | yes | yes |
| 631-355 | T-Mobile | BRENTWOOD | 2003-08-21 | yes | yes |
| 631-356 | T-Mobile | BRENTWOOD | 2003-08-21 | yes | yes |
| 631-357 | Verizon | BRENTWOOD | – | yes | yes |
| 631-358 | Verizon | BABYLON | 2010-09-10 | yes | yes |
| 631-359 | Peerless | WADING RIV | 2012-09-06 | yes | yes |
| 631-360 | Verizon | SMITHTOWN | – | – | yes |
| 631-361 | Verizon | SMITHTOWN | – | yes | yes |
| 631-363 | Verizon | BAYPORT | – | yes | yes |
| 631-364 | Windstream | STONYBROOK | 2010-11-08 | yes | yes |
| 631-365 | T-Mobile | BRENTWOOD | 2003-09-10 | yes | yes |
| 631-366 | Verizon | SMITHTOWN | – | yes | yes |
| 631-367 | Verizon | COLDSPGHBR | – | – | yes |
| 631-368 | Verizon | W COMMACK | – | – | yes |
| 631-369 | Verizon | RIVERHEAD | – | – | yes |
| 631-370 | AT&T | FARMINGDL | – | yes | yes |
| 631-371 | T-Mobile | STONYBROOK | 2002-06-17 | yes | yes |
| 631-372 | Verizon | BRENTWOOD | 2014-12-18 | yes | yes |
| 631-373 | Spok | BRENTWOOD | – | – | yes |
| 631-374 | AT&T | BRENTWOOD | 2001-11-14 | – | yes |
| 631-375 | AT&T | RIVERHEAD | 2001-11-14 | – | yes |
| 631-376 | Verizon | BABYLON | – | yes | yes |
| 631-377 | AT&T | SOUTHAMPTN | 2006-11-21 | yes | yes |
| 631-378 | Lumen | SHOREHAM | – | yes | yes |
| 631-379 | Verizon | BRENTWOOD | 2002-01-09 | – | yes |
| 631-380 | AT&T | STONYBROOK | – | yes | yes |
| 631-381 | T-Mobile | RIVERHEAD | 2016-06-07 | yes | yes |
| 631-382 | Verizon | SMITHTOWN | – | yes | yes |
| 631-383 | T-Mobile | BAY SHORE | 2002-06-17 | yes | yes |
| 631-384 | T-Mobile | SELDEN | 2002-05-14 | yes | yes |
| 631-385 | Verizon | HUNTINGTON | – | – | yes |
| 631-386 | Windstream | FARMINGDL | – | yes | yes |
| 631-387 | AT&T | COMMACK | – | yes | yes |
| 631-388 | CSC VOICE, LLC | BRENTWOOD | 2010-10-25 | yes | yes |
| 631-389 | Windstream | RONKONKOMA | – | yes | yes |
| 631-390 | Altice | FARMINGDL | – | – | yes |
| 631-391 | Verizon | FARMINGDL | – | yes | yes |
| 631-392 | CSC VOICE, LLC | DEER PARK | 2006-02-14 | yes | yes |
| 631-393 | Altice | FARMINGDL | – | yes | yes |
| 631-394 | T-Mobile | YAPHANK | 2010-10-26 | yes | yes |
| 631-395 | Verizon | ATLANTIC | – | – | yes |
| 631-396 | Altice | FARMINGDL | – | yes | yes |
| 631-397 | Bandwidth | AMITYVILLE | 2010-02-12 | yes | yes |
| 631-398 | T-Mobile | BRENTWOOD | – | – | yes |
| 631-399 | Verizon | ATLANTIC | – | yes | yes |
| 631-400 | Onvoy | CTRMORICHS | – | yes | yes |
| 631-401 | AT&T | BRENTWOOD | 2020-01-13 | yes | yes |
| 631-402 | TELENGY L.L.C. - NY | BRENTWOOD | 2012-02-01 | yes | yes |
| 631-403 | Verizon | PTJEFFERSN | 2006-08-23 | yes | yes |
| 631-404 | AT&T | BRENTWOOD | – | yes | yes |
| 631-405 | Verizon | RIVERHEAD | 2011-02-22 | yes | yes |
| 631-406 | RCN TELECOM SERVICES, INC. - NY | SMITHTOWN | – | yes | yes |
| 631-407 | Bandwidth | SOUTHOLD | 2011-03-21 | yes | yes |
| 631-408 | T-Mobile | AMITYVILLE | 2012-02-06 | yes | yes |
| 631-409 | IP HORIZON LLC | NASSAUZN09 | – | yes | yes |
| 631-410 | Windstream | COMMACK | – | yes | yes |
| 631-412 | Verizon | LINDENHST | – | yes | yes |
| 631-413 | AT&T | SELDEN | 2006-02-08 | yes | yes |
| 631-414 | Altice | FARMINGDL | – | yes | yes |
| 631-415 | Lumen | CENTRAISLP | – | yes | yes |
| 631-416 | Verizon | BRENTWOOD | 2011-07-11 | yes | yes |
| 631-417 | Altice | BABYLON | 2011-10-10 | yes | yes |
| 631-418 | Verizon | HUNTINGTON | 2001-05-03 | yes | yes |
| 631-419 | Verizon | BAYPORT | – | yes | yes |
| 631-420 | Verizon | FARMINGDL | – | yes | yes |
| 631-421 | Verizon | HUNTINGTON | – | – | yes |
| 631-422 | Verizon | BABYLON | – | – | yes |
| 631-423 | Verizon | HUNTINGTON | – | – | yes |
| 631-424 | Verizon | HUNTINGTON | – | – | yes |
| 631-425 | Verizon | HUNTINGTON | – | – | yes |
| 631-426 | T-Mobile | AMITYVILLE | 2023-09-07 | yes | yes |
| 631-427 | Verizon | HUNTINGTON | – | – | yes |
| 631-428 | T-Mobile | RONKONKOMA | 2001-04-04 | – | yes |
| 631-429 | Peerless | LINDENHST | 2012-09-06 | yes | yes |
| 631-430 | Peerless | GREENPORT | 2013-04-03 | yes | yes |
| 631-431 | T-Mobile | CENTRAISLP | – | yes | yes |
| 631-432 | Verizon | BRENTWOOD | – | yes | yes |
| 631-433 | T-Mobile | BRENTWOOD | 2002-06-26 | yes | yes |
| 631-434 | Verizon | BRENTWOOD | – | yes | yes |
| 631-435 | Verizon | BRENTWOOD | – | yes | yes |
| 631-436 | Verizon | BRENTWOOD | – | yes | yes |
| 631-437 | AT&T | FIREISLAND | 2013-10-08 | yes | yes |
| 631-438 | Bandwidth | PATCHOGUE | 2011-05-03 | yes | yes |
| 631-439 | Altice | CENTRAISLP | – | – | yes |
| 631-440 | Lumen | FIREISLAND | – | yes | yes |
| 631-441 | Spok | BRENTWOOD | – | – | yes |
| 631-442 | Spok | BRENTWOOD | – | – | yes |
| 631-443 | Lumen | EASTPORT | – | yes | yes |
| 631-444 | Verizon | STONYBROOK | – | – | yes |
| 631-445 | T-Mobile | BRENTWOOD | 2001-03-15 | yes | yes |
| 631-446 | CSC VOICE, LLC | ISLIP | 2007-06-07 | yes | yes |
| 631-447 | Verizon | PATCHOGUE | – | yes | yes |
| 631-448 | T-Mobile | YAPHANK | 2011-08-10 | yes | yes |
| 631-449 | T-Mobile | BRENTWOOD | 2013-06-14 | yes | yes |
| 631-450 | Onvoy | LINDENHST | – | yes | yes |
| 631-451 | Verizon | SELDEN | – | – | yes |
| 631-452 | T-Mobile | CENTRAISLP | 2015-09-08 | yes | yes |
| 631-453 | American Messaging | SELDEN | – | – | yes |
| 631-454 | Verizon | FARMINGDL | – | yes | yes |
| 631-455 | T-Mobile | DEER PARK | – | – | yes |
| 631-456 | Verizon | BRENTWOOD | 2005-02-09 | yes | yes |
| 631-457 | AT&T | BRENTWOOD | – | yes | yes |
| 631-458 | Lumen | SAG HARBOR | – | yes | yes |
| 631-459 | Verizon | BRENTWOOD | 2012-01-27 | yes | yes |
| 631-460 | Verizon | KINGS PARK | – | yes | yes |
| 631-461 | Verizon | RIVERHEAD | 2011-09-13 | yes | yes |
| 631-462 | Verizon | W COMMACK | – | – | yes |
| 631-463 | T-Mobile | CENTRAISLP | – | yes | yes |
| 631-464 | Bandwidth | AMITYVILLE | 2011-06-09 | yes | yes |
| 631-465 | Altice | FARMINGDL | – | yes | yes |
| 631-466 | Lumen | RIVERHEAD | – | yes | yes |
| 631-467 | Verizon | RONKONKOMA | – | – | yes |
| 631-468 | Verizon | RONKONKOMA | – | yes | yes |
| 631-469 | Altice | BRENTWOOD | 2018-04-24 | yes | yes |
| 631-470 | Altice | HUNTINGTON | – | yes | yes |
| 631-471 | Verizon | RONKONKOMA | – | – | yes |
| 631-472 | Verizon | BAYPORT | – | – | yes |
| 631-473 | Verizon | PTJEFFERSN | – | – | yes |
| 631-474 | Verizon | PTJEFFERSN | – | – | yes |
| 631-475 | Verizon | PATCHOGUE | – | – | yes |
| 631-476 | Verizon | PTJEFFERSN | – | – | yes |
| 631-477 | Verizon | GREENPORT | – | yes | yes |
| 631-478 | Verizon | BRENTWOOD | – | yes | yes |
| 631-479 | Lumen | HUNTINGTON | – | yes | yes |
| 631-480 | TELENGY L.L.C. - NY | AMITYVILLE | 2012-03-09 | yes | yes |
| 631-481 | Verizon | ISLIP | – | yes | yes |
| 631-482 | CSC VOICE, LLC | BABYLON | 2007-03-29 | yes | yes |
| 631-483 | TELENGY L.L.C. - NY | MONTAUK PT | 2012-02-03 | yes | yes |
| 631-484 | T-Mobile | BRENTWOOD | 2001-12-31 | yes | yes |
| 631-485 | Lumen | MIDLAND | – | yes | yes |
| 631-486 | Altice | W COMMACK | – | yes | yes |
| 631-487 | Verizon | BRENTWOOD | 2006-07-18 | yes | yes |
| 631-488 | CSC VOICE, LLC | SOUTHAMPTN | 2007-08-21 | yes | yes |
| 631-489 | Verizon | W COMMACK | – | yes | yes |
| 631-490 | TELENGY L.L.C. - NY | ATLANTIC | 2012-03-16 | yes | yes |
| 631-491 | Verizon | MIDLAND | – | yes | yes |
| 631-492 | Verizon | DEER PARK | – | yes | yes |
| 631-493 | Verizon | W COMMACK | – | yes | yes |
| 631-494 | T-Mobile | RIVERHEAD | 2009-04-21 | yes | yes |
| 631-495 | Verizon | BRENTWOOD | – | – | yes |
| 631-496 | Lumen | SELDEN | 2012-02-20 | yes | yes |
| 631-497 | Onvoy | HUNTINGTON | 2024-11-11 | yes | yes |
| 631-498 | Windstream | COLDSPGHBR | – | yes | yes |
| 631-499 | Verizon | W COMMACK | – | – | yes |
| 631-500 | Onvoy | WATER MILL | – | yes | yes |
| 631-501 | Verizon | FARMINGDL | – | yes | yes |
| 631-502 | TELENGY L.L.C. - NY | JAMESPORT | 2012-03-16 | yes | yes |
| 631-503 | AT&T | CTRMORICHS | – | yes | yes |
| 631-504 | CSC VOICE, LLC | YAPHANK | 2006-05-23 | yes | yes |
| 631-505 | Bandwidth | LINDENHST | 2010-02-24 | yes | yes |
| 631-506 | Verizon | RIVERHEAD | – | yes | yes |
| 631-507 | T-Mobile | AMITYVILLE | 2013-06-27 | yes | yes |
| 631-508 | Verizon | RIVERHEAD | 2018-03-13 | yes | yes |
| 631-509 | CSC VOICE, LLC | PTJEFFERSN | 2006-08-21 | yes | yes |
| 631-510 | Verizon | MIDLAND | – | yes | yes |
| 631-512 | AT&T | SELDEN | 2006-02-08 | yes | yes |
| 631-513 | Lumen | BRENTWOOD | – | yes | yes |
| 631-514 | Verizon | BRENTWOOD | – | yes | yes |
| 631-515 | Onvoy | SHELTER IS | 2012-10-31 | yes | yes |
| 631-516 | Onvoy | SELDEN | 2024-03-20 | yes | yes |
| 631-517 | Lumen | BABYLON | – | yes | yes |
| 631-518 | Peerless | BAY SHORE | 2013-04-03 | yes | yes |
| 631-519 | Peerless | E FIRE IS | 2013-04-03 | yes | yes |
| 631-520 | Lumen | AMITYVILLE | – | yes | yes |
| 631-521 | Lumen | BRENTWOOD | – | yes | yes |
| 631-522 | CSC VOICE, LLC | DEER PARK | 2009-04-02 | yes | yes |
| 631-523 | T-Mobile | CENTRAISLP | – | yes | yes |
| 631-524 | AT&T | BRENTWOOD | 2011-07-18 | yes | yes |
| 631-525 | Lumen | BRENTWOOD | 2003-11-04 | yes | yes |
| 631-526 | Onvoy | BABYLON | 2012-10-22 | yes | yes |
| 631-527 | CSC VOICE, LLC | E HAMPTON | 2011-06-03 | yes | yes |
| 631-528 | Verizon | KINGS PARK | – | yes | yes |
| 631-529 | Onvoy | ORIENT | – | yes | yes |
| 631-530 | T-Mobile | AMITYVILLE | 2015-11-24 | yes | yes |
| 631-531 | Verizon | FARMINGDL | – | yes | yes |
| 631-532 | Windstream | AMITYVILLE | – | yes | yes |
| 631-533 | Verizon | CENTRAISLP | 2009-02-09 | yes | yes |
| 631-534 | Verizon | COLDSPGHBR | – | yes | yes |
| 631-535 | Peerless | PTJEFFERSN | 2012-09-06 | yes | yes |
| 631-536 | Lumen | EASTPORT | – | yes | yes |
| 631-537 | Verizon | BRIDGEMPTN | – | – | yes |
| 631-538 | AT&T | SELDEN | – | yes | yes |
| 631-539 | Altice | BABYLON | – | yes | yes |
| 631-540 | Onvoy | MATTITUCK | 2020-05-12 | yes | yes |
| 631-541 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-542 | TELENGY L.L.C. - NY | RONKONKOMA | 2012-03-16 | yes | yes |
| 631-543 | Verizon | COMMACK | – | – | yes |
| 631-544 | Verizon | KINGS PARK | – | yes | yes |
| 631-545 | Peerless | AMITYVILLE | 2012-08-20 | yes | yes |
| 631-546 | Lumen | HUNTINGTON | – | yes | yes |
| 631-547 | Verizon | HUNTINGTON | – | yes | yes |
| 631-548 | Verizon | RIVERHEAD | – | yes | yes |
| 631-549 | Verizon | HUNTINGTON | – | – | yes |
| 631-550 | LTE WIRELESS INC D/B/A LTE WIRELESS - NY | YAPHANK | 2020-03-04 | yes | yes |
| 631-551 | Verizon | ST JAMES | – | yes | yes |
| 631-552 | T-Mobile | AMITYVILLE | 2013-08-22 | yes | yes |
| 631-553 | Verizon | BRENTWOOD | – | – | yes |
| 631-554 | Spok | BRENTWOOD | – | – | yes |
| 631-556 | ZCALL.COM, INC. | BRENTWOOD | 2005-11-15 | – | yes |
| 631-557 | Onvoy | AMAGANSETT | – | yes | yes |
| 631-558 | Spok | RIVERHEAD | – | – | yes |
| 631-559 | AT&T | BRENTWOOD | 2006-03-30 | yes | yes |
| 631-560 | Verizon | BRENTWOOD | 2006-09-19 | yes | yes |
| 631-561 | AT&T | SELDEN | – | yes | yes |
| 631-562 | CSC VOICE, LLC | PATCHOGUE | 2011-10-06 | yes | yes |
| 631-563 | Verizon | SAYVILLE | – | – | yes |
| 631-564 | Windstream | SAYVILLE | – | – | yes |
| 631-565 | T-Mobile | AMITYVILLE | 2009-05-19 | yes | yes |
| 631-566 | Lumen | RIVERHEAD | 2006-01-05 | yes | yes |
| 631-567 | Verizon | SAYVILLE | – | – | yes |
| 631-568 | HD CARRIER LLC | AMITYVILLE | – | yes | yes |
| 631-569 | Lumen | PATCHOGUE | 2006-05-19 | yes | yes |
| 631-570 | Lumen | FIREISLAND | – | yes | yes |
| 631-571 | Peerless | ORIENT | 2013-04-03 | yes | yes |
| 631-572 | T-Mobile | BABYLON | 2009-05-27 | yes | yes |
| 631-573 | CSC VOICE, LLC | SAYVILLE | 2011-10-06 | yes | yes |
| 631-574 | Windstream | RIVERHEAD | – | yes | yes |
| 631-575 | T-Mobile | BRENTWOOD | 2008-09-30 | yes | yes |
| 631-576 | Verizon | PATCHOGUE | – | yes | yes |
| 631-577 | Verizon | FARMINGDL | – | yes | yes |
| 631-578 | T-Mobile | YAPHANK | 2007-04-26 | yes | yes |
| 631-579 | AT&T | BRENTWOOD | 2008-11-14 | yes | yes |
| 631-580 | Verizon | RONKONKOMA | – | – | yes |
| 631-581 | Verizon | ISLIP | – | – | yes |
| 631-582 | Verizon | CENTRAISLP | – | – | yes |
| 631-583 | Verizon | FIREISLAND | – | yes | yes |
| 631-584 | Verizon | ST JAMES | – | yes | yes |
| 631-585 | Verizon | RONKONKOMA | – | – | yes |
| 631-586 | Verizon | DEER PARK | – | – | yes |
| 631-587 | Verizon | BABYLON | – | – | yes |
| 631-588 | Verizon | RONKONKOMA | – | – | yes |
| 631-589 | Verizon | SAYVILLE | – | – | yes |
| 631-590 | Lumen | RONKONKOMA | – | yes | yes |
| 631-591 | Altice | RIVERHEAD | – | yes | yes |
| 631-592 | Altice | LINDENHST | – | yes | yes |
| 631-593 | Lumen | GREENPORT | – | yes | yes |
| 631-594 | CSC VOICE, LLC | HAMPTNBAYS | 2001-03-15 | yes | yes |
| 631-595 | Verizon | DEER PARK | – | yes | yes |
| 631-596 | Verizon | QUOGUE | 2006-01-13 | yes | yes |
| 631-597 | Verizon | E FIRE IS | – | yes | yes |
| 631-598 | Verizon | AMITYVILLE | – | yes | yes |
| 631-599 | Verizon | RIVERHEAD | – | yes | yes |
| 631-600 | Onvoy | W COMMACK | – | yes | yes |
| 631-601 | AT&T | BRENTWOOD | 2012-11-29 | yes | yes |
| 631-602 | Verizon | SHELTER IS | 2006-02-03 | yes | yes |
| 631-603 | Windstream | RIVERHEAD | – | yes | yes |
| 631-604 | CSC VOICE, LLC | E HAMPTON | 2006-01-11 | yes | yes |
| 631-605 | AT&T | PATCHOGUE | 2009-05-13 | yes | yes |
| 631-606 | CSC VOICE, LLC | NORTHPORT | 2009-04-17 | yes | yes |
| 631-607 | AT&T | WADING RIV | 2018-09-06 | yes | yes |
| 631-608 | Altice | AMITYVILLE | – | yes | yes |
| 631-609 | Verizon | BRENTWOOD | 2008-09-08 | yes | yes |
| 631-610 | Lumen | EASTPORT | – | yes | yes |
| 631-612 | Lumen | BABYLON | – | yes | yes |
| 631-613 | Onvoy | BRIDGEMPTN | – | yes | yes |
| 631-614 | Onvoy | SOUTHAMPTN | – | – | yes |
| 631-615 | Lumen | RONKONKOMA | – | yes | yes |
| 631-616 | Verizon | PECONIC | 2006-01-13 | yes | yes |
| 631-617 | Verizon | BRENTWOOD | 2006-08-21 | yes | yes |
| 631-618 | Lumen | YAPHANK | – | yes | yes |
| 631-619 | AT&T | RONKONKOMA | – | yes | yes |
| 631-620 | Altice | BABYLON | 2011-06-22 | yes | yes |
| 631-621 | Verizon | ST JAMES | – | yes | yes |
| 631-622 | Altice | FARMINGDL | – | – | yes |
| 631-623 | AT&T | W COMMACK | – | yes | yes |
| 631-624 | Verizon | BRENTWOOD | 2008-06-30 | yes | yes |
| 631-625 | Onvoy | ORIENT | – | yes | yes |
| 631-626 | Verizon | BRENTWOOD | 2008-05-12 | yes | yes |
| 631-627 | Altice | PATCHOGUE | 2005-11-03 | yes | yes |
| 631-628 | Verizon | NORTHPORT | – | yes | yes |
| 631-629 | CSC VOICE, LLC | HUNTINGTON | 2007-10-31 | yes | yes |
| 631-630 | Altice | CENTRAISLP | – | – | yes |
| 631-631 | Bandwidth | FIREISLAND | 2022-10-11 | yes | yes |
| 631-632 | Verizon | STONYBROOK | – | yes | yes |
| 631-633 | Windstream | BELLPORT | 2014-03-03 | yes | yes |
| 631-634 | Altice | COMMACK | 2019-10-09 | yes | yes |
| 631-635 | Altice | BABYLON | – | yes | yes |
| 631-636 | AT&T | BRENTWOOD | 2014-12-15 | yes | yes |
| 631-637 | Verizon | BRENTWOOD | 2014-04-28 | yes | yes |
| 631-638 | Verizon | STONYBROOK | 2005-10-05 | yes | yes |
| 631-639 | AT&T | BRENTWOOD | – | yes | yes |
| 631-640 | T-Mobile | AMITYVILLE | 2017-03-28 | yes | yes |
| 631-641 | Bandwidth | WATER MILL | – | yes | yes |
| 631-642 | Verizon | PTJEFFERSN | – | yes | yes |
| 631-643 | Verizon | MIDLAND | – | – | yes |
| 631-644 | Verizon | RIVERHEAD | 2014-10-14 | yes | yes |
| 631-645 | T-Mobile | BRENTWOOD | – | – | yes |
| 631-646 | Onvoy | SAYVILLE | 2020-05-28 | yes | yes |
| 631-647 | Altice | BAY SHORE | – | yes | yes |
| 631-648 | Altice | RONKONKOMA | – | yes | yes |
| 631-649 | Lumen | BABYLON | – | yes | yes |
| 631-650 | Altice | ISLIP | – | yes | yes |
| 631-651 | CSC VOICE, LLC | NORTHPORT | – | yes | yes |
| 631-652 | Verizon | SMITHTOWN | 2014-01-13 | yes | yes |
| 631-653 | Verizon | QUOGUE | – | yes | yes |
| 631-654 | Verizon | PATCHOGUE | – | yes | yes |
| 631-655 | AT&T | RIVERHEAD | – | yes | yes |
| 631-656 | Altice | SMITHTOWN | – | yes | yes |
| 631-657 | Lumen | ATLANTIC | – | yes | yes |
| 631-658 | CSC VOICE, LLC | E HAMPTON | 2013-07-11 | yes | yes |
| 631-659 | Altice | COLDSPGHBR | – | yes | yes |
| 631-660 | T-Mobile | RIVERHEAD | – | yes | yes |
| 631-661 | Verizon | BABYLON | – | – | yes |
| 631-662 | AT&T | HUNTINGTON | 2002-10-25 | yes | yes |
| 631-663 | Altice | KINGS PARK | – | yes | yes |
| 631-664 | T-Mobile | CENTRAISLP | – | yes | yes |
| 631-665 | Verizon | BAY SHORE | – | – | yes |
| 631-666 | Verizon | BAY SHORE | – | – | yes |
| 631-667 | Verizon | DEER PARK | – | – | yes |
| 631-668 | Verizon | MONTAUK PT | – | yes | yes |
| 631-669 | Verizon | BABYLON | – | – | yes |
| 631-670 | Altice | COMMACK | – | yes | yes |
| 631-671 | T-Mobile | LINDENHST | 2002-06-17 | yes | yes |
| 631-672 | T-Mobile | SMITHTOWN | 2002-06-17 | yes | yes |
| 631-673 | Verizon | HUNTINGTON | – | – | yes |
| 631-674 | Verizon | MIDLAND | – | yes | yes |
| 631-675 | Altice | STONYBROOK | – | yes | yes |
| 631-676 | CSC VOICE, LLC | RONKONKOMA | 2004-08-20 | yes | yes |
| 631-677 | Verizon | SAYVILLE | – | yes | yes |
| 631-678 | Verizon | BRENTWOOD | – | yes | yes |
| 631-679 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-680 | AT&T | RIVERHEAD | 2001-02-14 | – | yes |
| 631-681 | AT&T | SELDEN | 2004-11-08 | yes | yes |
| 631-682 | AT&T | SELDEN | 2002-03-14 | – | yes |
| 631-683 | Verizon | HUNTINGTON | – | yes | yes |
| 631-684 | Peerless | WESTHAMPTN | 2001-06-23 | yes | yes |
| 631-685 | Onvoy | HAMPTNBAYS | – | yes | yes |
| 631-686 | Altice | ST JAMES | – | yes | yes |
| 631-687 | Verizon | PATCHOGUE | – | yes | yes |
| 631-688 | AT&T | FARMINGDL | – | yes | yes |
| 631-689 | Verizon | STONYBROOK | – | – | yes |
| 631-690 | AT&T | PATCHOGUE | 2018-10-15 | yes | yes |
| 631-691 | Verizon | AMITYVILLE | – | yes | yes |
| 631-692 | Verizon | COLDSPGHBR | – | – | yes |
| 631-693 | AT&T | AMITYVILLE | – | yes | yes |
| 631-694 | Verizon | FARMINGDL | – | – | yes |
| 631-695 | Spok | BRENTWOOD | – | – | yes |
| 631-696 | Verizon | SELDEN | – | – | yes |
| 631-697 | AT&T | HUNTINGTON | 2002-01-16 | – | yes |
| 631-698 | Verizon | SELDEN | – | – | yes |
| 631-699 | Verizon | SAYVILLE | – | yes | yes |
| 631-701 | AT&T | EASTPORT | – | yes | yes |
| 631-702 | Lumen | SOUTHAMPTN | – | yes | yes |
| 631-703 | T-Mobile | AMITYVILLE | 2005-08-08 | yes | yes |
| 631-704 | AT&T | BRENTWOOD | 2005-08-16 | yes | yes |
| 631-705 | Onvoy | ATLANTIC | 2016-02-16 | yes | yes |
| 631-706 | Verizon | STONYBROOK | – | yes | yes |
| 631-707 | Lumen | BRENTWOOD | 2005-03-10 | yes | yes |
| 631-708 | Verizon | BRENTWOOD | – | yes | yes |
| 631-709 | Lumen | WATER MILL | 2004-08-17 | yes | yes |
| 631-710 | Altice | RONKONKOMA | 2018-06-06 | yes | yes |
| 631-712 | AT&T | FARMINGDL | – | yes | yes |
| 631-713 | Windstream | EASTPORT | – | – | yes |
| 631-714 | Lumen | PATCHOGUE | 2004-10-11 | yes | yes |
| 631-715 | AT&T | CENTRAISLP | – | yes | yes |
| 631-716 | Verizon | SELDEN | – | yes | yes |
| 631-717 | PEERING HUB, INC. - NY | BAYPORT | 2021-04-29 | yes | yes |
| 631-718 | T-Mobile | RONKONKOMA | 2025-03-27 | yes | yes |
| 631-719 | Altice | FARMINGDL | – | – | yes |
| 631-720 | T-Mobile | BRENTWOOD | 2020-05-14 | yes | yes |
| 631-721 | Verizon | SELDEN | – | yes | yes |
| 631-722 | Verizon | JAMESPORT | – | yes | yes |
| 631-723 | Verizon | HAMPTNBAYS | – | yes | yes |
| 631-724 | Verizon | SMITHTOWN | – | – | yes |
| 631-725 | Verizon | SAG HARBOR | – | – | yes |
| 631-726 | Verizon | WATER MILL | – | yes | yes |
| 631-727 | Verizon | RIVERHEAD | – | – | yes |
| 631-728 | Verizon | HAMPTNBAYS | – | – | yes |
| 631-729 | AT&T | ATLANTIC | – | yes | yes |
| 631-730 | Altice | PATCHOGUE | – | yes | yes |
| 631-731 | Lumen | AMAGANSETT | – | yes | yes |
| 631-732 | Verizon | SELDEN | – | – | yes |
| 631-733 | SCARSDALE SECURITY SYSTEMS, INC. | BRENTWOOD | – | – | yes |
| 631-734 | Verizon | PECONIC | – | yes | yes |
| 631-735 | Peerless | PECONIC | 2013-04-03 | yes | yes |
| 631-736 | Verizon | SELDEN | – | – | yes |
| 631-737 | Verizon | RONKONKOMA | – | – | yes |
| 631-738 | Verizon | RONKONKOMA | – | – | yes |
| 631-739 | Verizon | RONKONKOMA | – | yes | yes |
| 631-740 | Verizon | RIVERHEAD | – | yes | yes |
| 631-741 | AT&T | BRENTWOOD | 2002-10-09 | yes | yes |
| 631-742 | AT&T | HUNTINGTON | 2002-10-09 | yes | yes |
| 631-743 | CSC VOICE, LLC | PTJEFFERSN | 2013-07-11 | yes | yes |
| 631-744 | Verizon | SHOREHAM | – | – | yes |
| 631-745 | AT&T | RIVERHEAD | 2002-02-21 | – | yes |
| 631-746 | T-Mobile | AMITYVILLE | 2014-09-30 | yes | yes |
| 631-747 | AT&T | BRENTWOOD | 2005-03-10 | yes | yes |
| 631-748 | T-Mobile | BRENTWOOD | – | – | yes |
| 631-749 | Verizon | SHELTER IS | – | yes | yes |
| 631-750 | Altice | SAYVILLE | – | yes | yes |
| 631-751 | Verizon | STONYBROOK | – | – | yes |
| 631-752 | Verizon | FARMINGDL | – | yes | yes |
| 631-753 | Verizon | FARMINGDL | – | yes | yes |
| 631-754 | Verizon | NORTHPORT | – | – | yes |
| 631-755 | Verizon | FARMINGDL | – | – | yes |
| 631-756 | Verizon | FARMINGDL | – | yes | yes |
| 631-757 | Verizon | NORTHPORT | – | – | yes |
| 631-758 | Verizon | PATCHOGUE | – | – | yes |
| 631-759 | Lumen | HUNTINGTON | – | yes | yes |
| 631-760 | AT&T | HUNTINGTON | – | yes | yes |
| 631-761 | Altice | CENTRAISLP | – | yes | yes |
| 631-762 | Lumen | STONYBROOK | – | yes | yes |
| 631-763 | Verizon | COLDSPGHBR | – | yes | yes |
| 631-764 | T-Mobile | SELDEN | 2001-04-12 | yes | yes |
| 631-765 | Verizon | SOUTHOLD | – | yes | yes |
| 631-766 | Verizon | BRENTWOOD | 2001-07-06 | – | yes |
| 631-767 | T-Mobile | BRENTWOOD | 2002-04-09 | yes | yes |
| 631-768 | Windstream | FARMINGDL | – | yes | yes |
| 631-769 | Verizon | SHOREHAM | – | yes | yes |
| 631-770 | Verizon | FARMINGDL | – | yes | yes |
| 631-771 | Lumen | E HAMPTON | 2004-10-13 | yes | yes |
| 631-772 | Altice | ATLANTIC | – | yes | yes |
| 631-773 | Windstream | FARMINGDL | – | yes | yes |
| 631-774 | T-Mobile | BRENTWOOD | – | yes | yes |
| 631-775 | Altice | YAPHANK | – | yes | yes |
| 631-776 | Verizon | BELLPORT | – | yes | yes |
| 631-777 | Verizon | FARMINGDL | – | yes | yes |
| 631-778 | Verizon | CENTRAISLP | – | yes | yes |
| 631-779 | CSC VOICE, LLC | JAMESPORT | – | yes | yes |
| 631-780 | Verizon | SMITHTOWN | – | yes | yes |
| 631-781 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-782 | Windstream | DEER PARK | – | yes | yes |
| 631-783 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-784 | AT&T | CENTRAISLP | – | yes | yes |
| 631-785 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-786 | Verizon | BRENTWOOD | 2001-01-16 | – | yes |
| 631-787 | AT&T | CENTRAISLP | – | yes | yes |
| 631-788 | FISHERS ISLAND TEL. CORP. | FISHERS IS | – | – | yes |
| 631-789 | Verizon | AMITYVILLE | – | – | yes |
| 631-790 | T-Mobile | PATCHOGUE | 2001-05-16 | – | yes |
| 631-791 | Verizon | PTJEFFERSN | – | yes | yes |
| 631-792 | AT&T | BABYLON | – | yes | yes |
| 631-793 | Verizon | BRENTWOOD | 2002-03-15 | – | yes |
| 631-794 | Windstream | FARMINGDL | – | – | yes |
| 631-795 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-796 | T-Mobile | BRENTWOOD | 2001-04-12 | yes | yes |
| 631-797 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-798 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-799 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-800 | Onvoy | SOUTHAMPTN | – | yes | yes |
| 631-801 | Altice | EASTPORT | – | yes | yes |
| 631-802 | Windstream | PTJEFFERSN | – | yes | yes |
| 631-803 | Altice | BELLPORT | – | yes | yes |
| 631-804 | Verizon | BRENTWOOD | 2001-05-04 | – | yes |
| 631-805 | T-Mobile | AMITYVILLE | 2001-05-16 | – | yes |
| 631-806 | Verizon | BRENTWOOD | 2001-10-05 | – | yes |
| 631-807 | Verizon | BRENTWOOD | 2002-04-18 | – | yes |
| 631-808 | Lumen | SAG HARBOR | – | yes | yes |
| 631-809 | T-Mobile | DEER PARK | 2018-07-12 | yes | yes |
| 631-810 | Onvoy | LINDENHST | 2020-12-16 | yes | yes |
| 631-812 | Windstream | HUNTINGTON | 2001-05-09 | yes | yes |
| 631-813 | Lumen | BRENTWOOD | 2004-10-15 | yes | yes |
| 631-814 | Onvoy | BABYLON | 2022-10-10 | yes | yes |
| 631-815 | Lumen | FARMINGDL | – | yes | yes |
| 631-816 | T-Mobile | YAPHANK | 2002-09-19 | yes | yes |
| 631-817 | Onvoy | FIREISLAND | – | yes | yes |
| 631-818 | Altice | BABYLON | 2018-10-30 | yes | yes |
| 631-819 | CSC WIRELESS, LLC | BAY SHORE | 2019-09-16 | yes | yes |
| 631-820 | Verizon | RONKONKOMA | – | yes | yes |
| 631-821 | Verizon | SHOREHAM | – | – | yes |
| 631-822 | Windstream | CENTRAISLP | – | yes | yes |
| 631-823 | AT&T | BAYPORT | – | yes | yes |
| 631-824 | Windstream | HUNTINGTON | – | yes | yes |
| 631-825 | Bandwidth | MONTAUK PT | 2014-08-01 | yes | yes |
| 631-826 | Verizon | NASSAUZN09 | – | yes | yes |
| 631-827 | AT&T | HUNTINGTON | 2002-05-16 | – | yes |
| 631-828 | Altice | PTJEFFERSN | – | yes | yes |
| 631-829 | T-Mobile | AMITYVILLE | 2015-09-08 | yes | yes |
| 631-830 | Lumen | RIVERHEAD | – | yes | yes |
| 631-831 | T-Mobile | BRENTWOOD | – | yes | yes |
| 631-832 | Verizon | BAYPORT | – | yes | yes |
| 631-833 | T-Mobile | RIVERHEAD | 2002-09-06 | yes | yes |
| 631-834 | Verizon | BRENTWOOD | – | – | yes |
| 631-835 | AT&T | BRENTWOOD | 2001-06-04 | – | yes |
| 631-836 | T-Mobile | BRENTWOOD | 2001-06-14 | – | yes |
| 631-837 | Verizon | NORTHPORT | – | yes | yes |
| 631-838 | AT&T | BRENTWOOD | – | – | yes |
| 631-839 | T-Mobile | BRENTWOOD | 2001-01-16 | – | yes |
| 631-840 | Lumen | ISLIP | – | yes | yes |
| 631-841 | Verizon | AMITYVILLE | – | yes | yes |
| 631-842 | Verizon | AMITYVILLE | – | – | yes |
| 631-843 | Verizon | FARMINGDL | – | yes | yes |
| 631-844 | Verizon | FARMINGDL | – | yes | yes |
| 631-845 | Verizon | FARMINGDL | – | yes | yes |
| 631-846 | Altice | SELDEN | 2001-01-16 | yes | yes |
| 631-847 | Verizon | FARMINGDL | – | yes | yes |
| 631-848 | Verizon | BRENTWOOD | 2002-06-24 | yes | yes |
| 631-849 | Altice | SHOREHAM | – | yes | yes |
| 631-850 | Verizon | W COMMACK | – | yes | yes |
| 631-851 | Verizon | CENTRAISLP | – | – | yes |
| 631-852 | Verizon | RIVERHEAD | – | – | yes |
| 631-853 | Verizon | CENTRAISLP | – | yes | yes |
| 631-854 | Verizon | BRENTWOOD | – | – | yes |
| 631-855 | T-Mobile | DEER PARK | – | yes | yes |
| 631-856 | CSC VOICE, LLC | HAMPTNBAYS | – | yes | yes |
| 631-857 | Verizon | COLDSPGHBR | – | yes | yes |
| 631-858 | Verizon | W COMMACK | – | yes | yes |
| 631-859 | Verizon | ISLIP | – | yes | yes |
| 631-860 | Verizon | DEER PARK | – | yes | yes |
| 631-861 | Verizon | FARMINGDL | – | yes | yes |
| 631-862 | Verizon | ST JAMES | – | yes | yes |
| 631-863 | Verizon | SMITHTOWN | – | yes | yes |
| 631-864 | Verizon | COMMACK | – | – | yes |
| 631-865 | Lumen | DEER PARK | – | yes | yes |
| 631-866 | AT&T | BELLPORT | – | yes | yes |
| 631-867 | Lumen | LINDENHST | – | yes | yes |
| 631-868 | Altice | BAYPORT | – | yes | yes |
| 631-869 | Verizon | BELLPORT | – | yes | yes |
| 631-870 | Windstream | CENTRAISLP | – | yes | yes |
| 631-871 | AT&T | RIVERHEAD | 2002-03-15 | – | yes |
| 631-872 | T-Mobile | BRENTWOOD | 2001-06-27 | yes | yes |
| 631-873 | Verizon | BRENTWOOD | 2004-10-14 | yes | yes |
| 631-874 | Verizon | CTRMORICHS | – | – | yes |
| 631-875 | AT&T | RIVERHEAD | 2001-07-18 | – | yes |
| 631-876 | Lumen | SOUTHOLD | 2004-08-17 | yes | yes |
| 631-877 | T-Mobile | BRENTWOOD | 2001-08-02 | – | yes |
| 631-878 | Verizon | CTRMORICHS | – | – | yes |
| 631-879 | Verizon | PATCHOGUE | – | yes | yes |
| 631-880 | AT&T | SELDEN | 2004-11-08 | yes | yes |
| 631-881 | AT&T | CENTRAISLP | – | yes | yes |
| 631-882 | T-Mobile | CENTRAISLP | 2001-05-16 | – | yes |
| 631-883 | Verizon | BAYPORT | – | yes | yes |
| 631-884 | Verizon | LINDENHST | – | yes | yes |
| 631-885 | T-Mobile | BRENTWOOD | 2004-10-27 | yes | yes |
| 631-886 | Altice | WADING RIV | – | yes | yes |
| 631-887 | Windstream | HAMPTNBAYS | 2001-10-10 | yes | yes |
| 631-888 | Verizon | LINDENHST | – | yes | yes |
| 631-889 | T-Mobile | DEER PARK | 2002-04-15 | yes | yes |
| 631-890 | Verizon | PATCHOGUE | – | – | yes |
| 631-891 | Windstream | PATCHOGUE | 2004-05-24 | yes | yes |
| 631-892 | Verizon | BAY SHORE | – | yes | yes |
| 631-893 | Verizon | BABYLON | – | yes | yes |
| 631-894 | AT&T | BAY SHORE | – | yes | yes |
| 631-895 | Onvoy | QUOGUE | – | yes | yes |
| 631-896 | T-Mobile | NORTHPORT | 2002-06-17 | yes | yes |
| 631-897 | AT&T | HUNTINGTON | 2001-10-03 | – | yes |
| 631-898 | Verizon | WESTHAMPTN | – | yes | yes |
| 631-899 | Lumen | SAG HARBOR | – | yes | yes |
| 631-900 | Onvoy | W COMMACK | – | yes | yes |
| 631-901 | T-Mobile | BRENTWOOD | 2005-04-04 | yes | yes |
| 631-902 | AT&T | RIVERHEAD | 2002-10-09 | yes | yes |
| 631-903 | AT&T | SOUTHAMPTN | 2002-10-09 | yes | yes |
| 631-904 | Verizon | CENTRAISLP | – | yes | yes |
| 631-905 | Verizon | RIVERHEAD | – | yes | yes |
| 631-906 | T-Mobile | DEER PARK | 2019-09-13 | yes | yes |
| 631-907 | Verizon | E HAMPTON | – | yes | yes |
| 631-908 | CSC VOICE, LLC | PATCHOGUE | 2020-03-09 | yes | yes |
| 631-909 | Altice | CTRMORICHS | – | yes | yes |
| 631-910 | XO NEW YORK, INC. | WADING RIV | – | yes | yes |
| 631-912 | Verizon | NORTHPORT | – | yes | yes |
| 631-913 | Verizon | RONKONKOMA | – | yes | yes |
| 631-914 | AT&T | RIVERHEAD | 2024-11-25 | yes | yes |
| 631-915 | AMERICAN NETWORK, INC. | RIVERHEAD | – | – | yes |
| 631-916 | Telnyx | SHOREHAM | 2021-02-02 | yes | yes |
| 631-918 | AT&T | DEER PARK | – | yes | yes |
| 631-919 | Onvoy | SAG HARBOR | – | yes | yes |
| 631-920 | Altice | MIDLAND | – | yes | yes |
| 631-921 | Verizon | BRENTWOOD | 2001-10-05 | – | yes |
| 631-922 | T-Mobile | BRENTWOOD | – | yes | yes |
| 631-923 | AT&T | HUNTINGTON | – | yes | yes |
| 631-924 | Verizon | YAPHANK | – | – | yes |
| 631-925 | Lumen | NORTHPORT | – | yes | yes |
| 631-926 | T-Mobile | BRENTWOOD | 2002-09-25 | yes | yes |
| 631-927 | AT&T | FARMINGDL | – | yes | yes |
| 631-928 | Verizon | PTJEFFERSN | – | – | yes |
| 631-929 | Verizon | WADING RIV | – | yes | yes |
| 631-930 | Windstream | CENTRAISLP | – | yes | yes |
| 631-931 | WIDE VOICE, LLC - NY | E HAMPTON | 2016-06-03 | yes | yes |
| 631-932 | Verizon | DEER PARK | 2005-04-01 | yes | yes |
| 631-933 | T-Mobile | AMITYVILLE | 2015-01-23 | yes | yes |
| 631-934 | T-Mobile | BABYLON | 2025-03-27 | yes | yes |
| 631-935 | AT&T | HUNTINGTON | – | yes | yes |
| 631-937 | CSC VOICE, LLC | SOUTHOLD | 2015-07-16 | yes | yes |
| 631-938 | Lumen | PTJEFFERSN | 2005-04-08 | yes | yes |
| 631-939 | T-Mobile | RIVERHEAD | 2019-04-24 | yes | yes |
| 631-940 | Altice | DEER PARK | – | yes | yes |
| 631-941 | Verizon | STONYBROOK | – | yes | yes |
| 631-942 | Verizon | BRENTWOOD | 2005-08-22 | yes | yes |
| 631-943 | T-Mobile | BABYLON | 2001-05-16 | – | yes |
| 631-944 | Windstream | HUNTINGTON | – | yes | yes |
| 631-945 | Onvoy | GREENPORT | 2021-01-27 | yes | yes |
| 631-946 | AT&T | SELDEN | 2005-09-07 | yes | yes |
| 631-947 | Verizon | BELLPORT | – | yes | yes |
| 631-948 | T-Mobile | BRENTWOOD | – | – | yes |
| 631-949 | T-Mobile | BELLPORT | 2001-05-16 | – | yes |
| 631-951 | Verizon | BRENTWOOD | – | yes | yes |
| 631-952 | Verizon | BRENTWOOD | – | – | yes |
| 631-953 | Verizon | RIVERHEAD | – | yes | yes |
| 631-954 | Bandwidth | BAY SHORE | – | yes | yes |
| 631-955 | Verizon | DEER PARK | – | – | yes |
| 631-956 | Verizon | LINDENHST | – | yes | yes |
| 631-957 | Verizon | LINDENHST | – | – | yes |
| 631-960 | AT&T | ISLIP | – | yes | yes |
| 631-961 | Lumen | BABYLON | – | yes | yes |
| 631-962 | Verizon | FARMINGDL | – | yes | yes |
| 631-963 | Verizon | CENTRAISLP | – | yes | yes |
| 631-964 | Verizon | DEER PARK | – | yes | yes |
| 631-965 | AT&T | RIVERHEAD | 2002-09-19 | yes | yes |
| 631-966 | FRACTEL, LLC | BRENTWOOD | 2020-07-08 | yes | yes |
| 631-967 | Windstream | BRENTWOOD | – | – | yes |
| 631-968 | Verizon | BAY SHORE | – | – | yes |
| 631-969 | Verizon | BAY SHORE | – | yes | yes |
| 631-970 | Onvoy | MATTITUCK | 2021-01-27 | yes | yes |
| 631-971 | Windstream | W COMMACK | – | yes | yes |
| 631-972 | Lumen | BRENTWOOD | 2005-09-15 | yes | yes |
| 631-973 | AT&T | KINGS PARK | – | yes | yes |
| 631-974 | T-Mobile | SMITHTOWN | 2001-04-04 | – | yes |
| 631-975 | Onvoy | CTRMORICHS | 2016-02-15 | yes | yes |
| 631-977 | Onvoy | PATCHOGUE | 2016-02-09 | yes | yes |
| 631-978 | Verizon | PTJEFFERSN | – | yes | yes |
| 631-979 | Verizon | SMITHTOWN | – | – | yes |
| 631-980 | Onvoy | COMMACK | – | – | yes |
| 631-981 | Verizon | RONKONKOMA | – | – | yes |
| 631-982 | Verizon | SMITHTOWN | – | yes | yes |
| 631-983 | Verizon | BABYLON | – | yes | yes |
| 631-984 | CSC WIRELESS, LLC | DEER PARK | 2020-03-26 | yes | yes |
| 631-985 | Onvoy | RIVERHEAD | 2021-01-27 | yes | yes |
| 631-986 | Onvoy | SMITHTOWN | 2021-01-27 | yes | yes |
| 631-987 | Verizon | BRENTWOOD | – | – | yes |
| 631-988 | AT&T | HUNTINGTON | 2001-02-14 | – | yes |
| 631-989 | Charter | RIVERHEAD | – | yes | yes |
| 631-990 | AIRUS, INC. - NY | BAY SHORE | 2019-09-30 | yes | yes |
| 631-991 | AT&T | LINDENHST | – | yes | yes |
| 631-992 | Altice | DEER PARK | 2013-09-16 | yes | yes |
| 631-993 | Verizon | COMMACK | – | yes | yes |
| 631-994 | AT&T | BRENTWOOD | 2014-08-25 | yes | yes |
| 631-995 | Verizon | YAPHANK | – | yes | yes |
| 631-996 | Altice | QUOGUE | – | yes | yes |
| 631-997 | AT&T | SELDEN | 2014-07-29 | yes | yes |
| 631-998 | Altice | WESTHAMPTN | – | yes | yes |
| 631-999 | YORKSTREAM COMMUNICATIONS LLC | JAMESPORT | 2024-02-20 | yes | yes |
Frequently asked
How many prefixes does area code 631 have?
782 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,820 thousand-number ranges across 54 rate centers.
What do the first three digits after 631 tell me?
They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.
Is a 631 prefix tied to a specific town?
To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.
What does “pooled” mean in the 631 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 600 of 631's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.
Source and limits
NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.
More about this code: overview · carriers · spam complaints · local time