NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

Area code 412 prefixes

762 of the 786 possible NXX blocks are assigned in area code 412 (96.9% of capacity), spread across 32 rate centers and 40 holders. The largest holders are VERIZON PENNSYLVANIA, INC. (246 blocks, 32.3%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA (86 blocks, 11.3%), NEW CINGULAR WIRELESS PCS, LLC - IL (60 blocks, 7.9%). Grouped by brand, Verizon accounts for 389 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 2001-01-22 to 2026-07-06, with 42 blocks handed out in 2001 alone. 493 blocks (65%) 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. 2 assigned blocks (750, 940) are not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 97 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

762 assigned blocks of 786
32 rate centers
40 holders of record
65% in thousands-block pooling

Largest holders in 412

Holder of record, as NANPA names itBrandBlocksShare
VERIZON PENNSYLVANIA, INC. Verizon 246 32.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA Verizon 86 11.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 60 7.9%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 57 7.5%
AERIAL COMMUNICATIONS, INC. T-Mobile 49 6.4%
ONVOY, LLC - PA Onvoy 42 5.5%
PAETEC ITEL, LLC Windstream 38 5%
TELEPORT COMMUNICATIONS AMERICA, LLC - PA AT&T 35 4.6%
LEVEL 3 COMMUNICATIONS, LLC - PA Lumen 34 4.5%
SPOK, INC. Spok 24 3.1%
FIDIUM ENTERPRISE SERVICES, LLC – 21 2.8%
BANDWIDTH.COM CLEC, LLC - PA Bandwidth 13 1.7%

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.

All 762 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.

PrefixHolder of recordRate centerAssignedPooledIn service
412-200 AT&T PTGSBNZN14 – yes yes
412-201 Verizon PTTSBGZON1 – yes yes
412-202 Onvoy PTTSBGZON1 – yes yes
412-203 Lumen PTGSBNZN15 – yes yes
412-204 Windstream PTTSBGZON8 – yes yes
412-205 AT&T PTTSBGZON5 – yes yes
412-206 Windstream PTGSBNZN13 – yes yes
412-207 AT&T PTTSBGZON6 – yes yes
412-208 Verizon PTTSBGZON1 – yes yes
412-209 Verizon PTTSBGZON1 – yes yes
412-212 Lumen PTGSBNZN12 2001-10-18 yes yes
412-213 AT&T PTGSBNZN18 – yes yes
412-214 WIDE VOICE, LLC - PA PTTSBGZON8 2016-01-20 yes yes
412-215 Verizon PTTSBGZON1 – – yes
412-216 Verizon PTTSBGZON1 – – yes
412-217 AT&T WASHINGTON – yes yes
412-218 T-Mobile PTGSBNZN14 2013-11-26 yes yes
412-219 Windstream PTGSBNZN18 2001-10-18 yes yes
412-220 Verizon PTGSBNZN13 – – yes
412-221 Verizon PTGSBNZN13 – – yes
412-222 AT&T PTTSBGZON1 – – yes
412-223 CORE COMMUNICATIONS, INC. - PA PTTSBGZON2 2002-07-12 yes yes
412-224 FIDIUM ENTERPRISE SERVICES, LLC PTTSBGZON1 – yes yes
412-225 AT&T PTTSBGZON1 – – yes
412-226 AT&T CLAIRTON – yes yes
412-227 Verizon PTTSBGZON1 – – yes
412-228 CITYNET PENNSYLVANIA, LLC - PA PTTSBGZON1 2003-12-04 yes yes
412-229 Windstream PTGSBNZN22 2001-07-19 yes yes
412-230 AT&T PTTSBGZON1 2012-04-09 yes yes
412-231 Verizon PTTSBGZON1 – yes yes
412-232 Verizon PTTSBGZON1 – – yes
412-233 Verizon CLAIRTON – – yes
412-234 Verizon PTTSBGZON1 – – yes
412-235 Lumen PTTSBGZON1 – yes yes
412-236 Verizon PTTSBGZON1 – – yes
412-237 Verizon PTTSBGZON1 – – yes
412-238 Lumen PTTSBGZON2 – yes yes
412-239 Verizon PTTSBGZON1 2022-07-19 yes yes
412-240 SKYE TELECOM LLC DBA SKYETEL PTTSBGZON1 2021-09-20 yes yes
412-241 Verizon PTTSBGZON4 – – yes
412-242 Verizon PTTSBGZON4 – – yes
412-243 Verizon PTTSBGZON4 – – yes
412-244 Verizon PTTSBGZON4 – – yes
412-245 Lumen PTGSBNZN22 2001-02-08 yes yes
412-246 Windstream PTTSBGZON1 – yes yes
412-247 Verizon PTTSBGZON4 – yes yes
412-248 FULL SERVICE NETWORK LP PTGSBNZN14 2001-09-21 – yes
412-249 AT&T PTGSBNZN14 – yes yes
412-250 Windstream PTTSBGZON7 – yes yes
412-251 Comcast PTTSBGZON1 – yes yes
412-252 AT&T PTTSBGZON3 – yes yes
412-253 Windstream PTTSBGZON6 2001-03-20 yes yes
412-254 Verizon PTTSBGZON6 – yes yes
412-255 Verizon PTTSBGZON1 – – yes
412-256 Verizon PTTSBGZON4 – yes yes
412-257 Verizon PTGSBNZN13 – – yes
412-258 Verizon PTTSBGZON1 – yes yes
412-259 AT&T PTGSBNZN16 – yes yes
412-260 Verizon PTTSBGZON1 – – yes
412-261 Verizon PTTSBGZON1 – – yes
412-262 Verizon PTGSBNZN15 – – yes
412-263 Verizon PTTSBGZON1 – – yes
412-264 Verizon PTGSBNZN15 – – yes
412-265 Lumen PTGSBNZN20 2001-05-21 yes yes
412-266 Verizon PTTSBGZON1 – – yes
412-267 Lumen PTGSBNZN10 2001-06-19 yes yes
412-268 Verizon PTTSBGZON1 – yes yes
412-269 Verizon PTGSBNZN15 – – yes
412-270 Spok PTGSBNZN14 – – yes
412-271 Verizon PTTSBGZON4 – – yes
412-272 Spok PTGSBNZN14 – – yes
412-273 Verizon PTTSBGZON4 – yes yes
412-274 Onvoy CLAIRTON 2016-03-16 yes yes
412-275 Comcast PTGSBNZN14 2011-09-02 yes yes
412-276 Verizon PTGSBNZN14 – – yes
412-277 AT&T PTTSBGZON1 2002-08-14 – yes
412-278 Verizon PTGSBNZN14 – yes yes
412-279 Verizon PTGSBNZN14 – – yes
412-280 Spok PTTSBGZON1 – – yes
412-281 Verizon PTTSBGZON1 – – yes
412-282 Lumen PTTSBGZON3 – yes yes
412-283 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN12 – yes yes
412-284 NUSO, LLC PTTSBGZON8 2022-10-10 yes yes
412-285 Verizon PTTSBGZON1 – yes yes
412-286 AT&T PTTSBGZON1 2023-01-03 yes yes
412-287 T-Mobile PTTSBGZON1 – yes yes
412-288 Verizon PTTSBGZON1 – – yes
412-289 Verizon INDIANA – – yes
412-290 AT&T PTTSBGZON1 2009-07-14 yes yes
412-291 Verizon PTTSBGZON1 – yes yes
412-292 T-Mobile PTGSBNZN13 – yes yes
412-293 Onvoy PTGSBNZN14 – yes yes
412-294 Lumen PTGSBNZN14 2001-05-21 yes yes
412-295 AT&T PTTSBGZON1 2010-01-04 yes yes
412-296 T-Mobile WASHINGTON – yes yes
412-297 Verizon PTTSBGZON1 – yes yes
412-298 AT&T PTTSBGZON1 – – yes
412-299 Verizon PTGSBNZN15 – yes yes
412-300 Spok PTGSBNZN14 – – yes
412-301 Comcast PTTSBGZON2 2004-10-01 yes yes
412-302 Verizon PTTSBGZON1 – – yes
412-303 Verizon PTTSBGZON1 – – yes
412-304 T-Mobile PTTSBGZON1 2006-01-31 yes yes
412-305 T-Mobile PTGSBNZN18 2022-02-16 yes yes
412-306 Verizon PTTSBGZON6 – yes yes
412-307 Windstream PTTSBGZON2 – yes yes
412-308 AT&T PTGSBNZN12 – yes yes
412-309 Verizon INDIANA – yes yes
412-310 Verizon PTTSBGZON1 – – yes
412-312 Verizon PTTSBGZON2 – yes yes
412-313 Verizon PTTSBGZON2 – yes yes
412-314 Onvoy PTGSBNZN10 – yes yes
412-315 AT&T PTTSBGZON1 2011-01-19 yes yes
412-316 AT&T PTTSBGZON1 – yes yes
412-317 AT&T PTGSBNZN22 – yes yes
412-318 AT&T PTGSBNZN17 – yes yes
412-319 AT&T PTGSBNZN13 – yes yes
412-320 Verizon PTTSBGZON1 – yes yes
412-321 Verizon PTTSBGZON1 – – yes
412-322 Verizon PTTSBGZON1 – – yes
412-323 Verizon PTTSBGZON1 – – yes
412-324 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN16 – yes yes
412-325 FIDIUM ENTERPRISE SERVICES, LLC PTTSBGZON1 – – yes
412-326 Windstream PTTSBGZON5 – yes yes
412-327 AT&T PTTSBGZON1 – – yes
412-328 Onvoy PTTSBGZON1 2010-02-26 yes yes
412-329 Windstream PTGSBNZN15 2001-02-08 yes yes
412-330 Verizon PTTSBGZON1 – yes yes
412-331 Verizon PTTSBGZON7 – – yes
412-332 Onvoy PTGSBNZN20 2020-10-08 yes yes
412-334 Verizon PTTSBGZON1 – – yes
412-335 Verizon PTTSBGZON1 – – yes
412-336 Lumen PTTSBGZON4 – yes yes
412-337 Verizon PTTSBGZON1 – – yes
412-338 Verizon PTTSBGZON1 – – yes
412-339 Lumen PTTSBGZON1 2011-10-25 yes yes
412-340 SCHUYLKILL MOBILE FONE, INC. PTGSBNZN19 – – yes
412-341 Verizon PTTSBGZON6 – – yes
412-342 Windstream PTTSBGZON4 – yes yes
412-343 Verizon PTTSBGZON6 – – yes
412-344 Verizon PTTSBGZON6 – – yes
412-345 Windstream PTTSBGZON8 – yes yes
412-346 Windstream PTGSBNZN10 – yes yes
412-347 Windstream PTGSBNZN12 – yes yes
412-348 Windstream PTGSBNZN17 – yes yes
412-349 Windstream PTGSBNZN22 – yes yes
412-350 Verizon PTTSBGZON1 – yes yes
412-351 Verizon PTTSBGZON4 – yes yes
412-352 AT&T PTTSBGZON1 – – yes
412-353 Windstream PTTSBGZON7 2001-09-21 yes yes
412-354 Verizon PTTSBGZON1 2011-05-31 yes yes
412-355 Verizon PTTSBGZON1 – – yes
412-356 Verizon PTGSBNZN16 2001-03-20 yes yes
412-357 Lumen PTGSBNZN22 2001-08-20 yes yes
412-358 Verizon PTGSBNZN17 – yes yes
412-359 Verizon PTTSBGZON1 – yes yes
412-360 CORE COMMUNICATIONS, INC. - PA PTTSBGZON1 2001-07-19 yes yes
412-361 Verizon PTTSBGZON8 – yes yes
412-362 Verizon PTTSBGZON8 – – yes
412-363 Verizon PTTSBGZON8 – yes yes
412-364 Verizon PTGSBNZN17 – – yes
412-365 Verizon PTTSBGZON8 – yes yes
412-366 Verizon PTGSBNZN17 – – yes
412-367 Verizon PTGSBNZN17 – – yes
412-368 Lumen PTTSBGZON5 2001-03-20 yes yes
412-369 Verizon PTGSBNZN17 – – yes
412-370 AT&T PTTSBGZON1 – – yes
412-371 Verizon PTTSBGZON4 – – yes
412-372 Verizon PTGSBNZN22 – – yes
412-373 Verizon PTGSBNZN22 – – yes
412-374 Verizon PTGSBNZN22 – – yes
412-375 AT&T PTGSBNZN15 – yes yes
412-376 Verizon PTGSBNZN22 – yes yes
412-377 AT&T PTTSBGZON1 2001-04-19 – yes
412-378 T-Mobile PTGSBNZN22 – yes yes
412-379 Verizon PTTSBGZON6 2001-06-20 yes yes
412-380 Verizon PTGSBNZN22 – – yes
412-381 Verizon PTTSBGZON1 – – yes
412-382 Verizon ELIZABETH – yes yes
412-383 Verizon PTTSBGZON1 – – yes
412-384 Verizon ELIZABETH – – yes
412-385 Verizon PTGSBNZN10 – yes yes
412-386 Verizon PTGSBNZN11 – yes yes
412-387 Verizon ELIZABETH – yes yes
412-388 Verizon PTTSBGZON6 – yes yes
412-389 Verizon PTTSBGZON1 – – yes
412-390 Verizon PTTSBGZON1 – yes yes
412-391 Verizon PTTSBGZON1 – – yes
412-392 Verizon PTTSBGZON1 – – yes
412-393 Verizon PTTSBGZON1 – yes yes
412-394 Verizon PTTSBGZON1 – – yes
412-395 AT&T PTTSBGZON1 – – yes
412-396 Verizon PTTSBGZON1 – yes yes
412-397 Verizon PTGSBNZN15 – yes yes
412-398 Verizon PTTSBGZON1 – – yes
412-399 Lumen PTTSBGZON5 – yes yes
412-400 Verizon PTTSBGZON1 – – yes
412-401 T-Mobile PTTSBGZON5 – yes yes
412-402 Verizon PTTSBGZON1 – yes yes
412-403 AT&T PTTSBGZON1 2001-11-08 – yes
412-404 AT&T PTTSBGZON8 – yes yes
412-405 AT&T ELIZABETH – yes yes
412-406 AT&T PTGSBNZN19 – yes yes
412-407 Verizon PTTSBGZON3 – yes yes
412-408 Verizon PTTSBGZON3 – yes yes
412-409 Verizon PTGSBNZN12 – yes yes
412-410 BARR TELL USA, INC. - PA PTTSBGZON1 2016-02-10 yes yes
412-413 Verizon PTGSBNZN14 2015-01-28 yes yes
412-414 T-Mobile PTTSBGZON5 – yes yes
412-415 AT&T PTTSBGZON2 – yes yes
412-416 Verizon PTTSBGZON1 2009-09-02 yes yes
412-417 AT&T PTTSBGZON1 – – yes
412-418 AT&T PTTSBGZON1 – – yes
412-419 AT&T PTTSBGZON1 – yes yes
412-420 Verizon PTTSBGZON1 – yes yes
412-421 Verizon PTTSBGZON1 – – yes
412-422 Verizon PTTSBGZON1 – – yes
412-423 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN20 – yes yes
412-424 Windstream PTGSBNZN15 – yes yes
412-425 T-Mobile PTTSBGZON5 2001-01-22 yes yes
412-426 Verizon PTGSBNZN20 – yes yes
412-427 AT&T PTTSBGZON1 – – yes
412-428 Verizon PTGSBNZN14 2001-10-18 yes yes
412-429 Verizon PTGSBNZN14 – – yes
412-430 Peerless PTTSBGZON1 2012-03-12 yes yes
412-431 Verizon PTTSBGZON1 – yes yes
412-432 Verizon PTTSBGZON1 – yes yes
412-433 Verizon PTTSBGZON1 – – yes
412-434 Verizon PTTSBGZON1 – – yes
412-435 Windstream PTGSBNZN20 – yes yes
412-436 Windstream PTTSBGZON4 2001-08-20 yes yes
412-437 Lumen PTTSBGZON6 – yes yes
412-438 Lumen PTTSBGZON7 – yes yes
412-439 Verizon PTTSBGZON1 2010-09-28 yes yes
412-440 Windstream PTTSBGZON6 – yes yes
412-441 Verizon PTTSBGZON8 – – yes
412-442 Verizon PTTSBGZON1 – – yes
412-443 Verizon PTTSBGZON1 – – yes
412-444 Windstream PTTSBGZON7 – yes yes
412-445 Verizon PTTSBGZON1 – – yes
412-446 Windstream PTGSBNZN14 – yes yes
412-447 Windstream PTGSBNZN19 – yes yes
412-448 T-Mobile PTTSBGZON5 – yes yes
412-449 Windstream PTTSBGZON3 – yes yes
412-450 Lumen PTTSBGZON8 – yes yes
412-451 T-Mobile PTTSBGZON5 – yes yes
412-452 AT&T PTTSBGZON1 2001-11-15 yes yes
412-453 Lumen PTGSBNZN18 2001-04-19 yes yes
412-454 Verizon PTTSBGZON1 – – yes
412-455 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN19 – yes yes
412-456 Verizon PTTSBGZON1 – – yes
412-457 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN22 – yes yes
412-458 Comcast PTTSBGZON7 2004-10-01 yes yes
412-459 FIDIUM ENTERPRISE SERVICES, LLC PTTSBGZON2 – yes yes
412-460 Verizon PTGSBNZN10 – yes yes
412-461 Verizon PTTSBGZON5 – – yes
412-462 Verizon PTTSBGZON5 – – yes
412-463 Verizon PTTSBGZON1 2012-03-16 yes yes
412-464 Verizon PTTSBGZON5 – yes yes
412-465 Bandwidth PTGSBNZN10 2008-06-24 yes yes
412-466 Verizon PTGSBNZN10 – – yes
412-467 Verizon PTTSBGZON1 – yes yes
412-468 YMAX COMMUNICATIONS CORP. - PA CLAIRTON 2006-12-13 yes yes
412-469 Verizon PTGSBNZN10 – – yes
412-470 Verizon PTGSBNZN15 – yes yes
412-471 Verizon PTTSBGZON1 – – yes
412-472 Verizon PTGSBNZN15 – yes yes
412-473 Verizon PTTSBGZON4 – yes yes
412-474 Verizon PTGSBNZN15 – yes yes
412-475 T-Mobile PTTSBGZON1 – yes yes
412-476 Verizon PTTSBGZON5 – yes yes
412-477 Verizon PTTSBGZON1 – – yes
412-478 T-Mobile PTTSBGZON1 – – yes
412-479 Verizon PTGSBNZN12 2001-10-18 yes yes
412-480 Verizon PTTSBGZON1 – – yes
412-481 Verizon PTTSBGZON1 – – yes
412-482 Windstream PTTSBGZON1 2007-04-23 yes yes
412-483 Telnyx PTGSBNZN10 2017-05-05 yes yes
412-484 AT&T PTTSBGZON1 2023-08-09 yes yes
412-485 Verizon PTTSBGZON1 – yes yes
412-486 Verizon PTGSBNZN18 – – yes
412-487 Verizon PTGSBNZN18 – – yes
412-488 Verizon PTTSBGZON1 – – yes
412-489 Verizon PTGSBNZN14 – yes yes
412-490 Verizon PTGSBNZN14 – – yes
412-491 Verizon PTTSBGZON1 – – yes
412-492 Verizon PTGSBNZN18 – yes yes
412-493 Verizon PTGSBNZN15 – yes yes
412-494 Verizon PTGSBNZN14 – yes yes
412-495 Verizon PTTSBGZON1 2014-08-25 yes yes
412-496 Verizon PTTSBGZON1 – – yes
412-497 Verizon PTTSBGZON1 – – yes
412-498 T-Mobile PTGSBNZN14 – yes yes
412-499 Lumen PTTSBGZON2 2003-02-27 yes yes
412-500 Onvoy PTTSBGZON1 2015-03-23 yes yes
412-501 Verizon PTTSBGZON4 – yes yes
412-502 Verizon PTTSBGZON6 – yes yes
412-503 Verizon PTTSBGZON7 – yes yes
412-504 Verizon PTGSBNZN13 – yes yes
412-505 Verizon PTGSBNZN14 – yes yes
412-506 Verizon PTGSBNZN14 – yes yes
412-507 Verizon PTGSBNZN15 – yes yes
412-508 Verizon PTTSBGZON1 – – yes
412-509 Verizon PTTSBGZON1 2015-09-15 yes yes
412-510 XO COMMUNICATIONS SERVICES, INC. - PA PTTSBGZON1 2017-03-09 yes yes
412-512 T-Mobile PTTSBGZON1 – yes yes
412-513 Verizon PTTSBGZON1 – yes yes
412-514 Verizon PTTSBGZON1 2016-02-17 yes yes
412-515 T-Mobile PTTSBGZON1 2012-03-16 yes yes
412-516 AIRESPRING, INC. PTGSBNZN22 2018-11-16 yes yes
412-517 AT&T PTGSBNZN20 – yes yes
412-518 Verizon PTTSBGZON1 2009-09-17 yes yes
412-519 T-Mobile PTTSBGZON1 – – yes
412-520 Verizon PTTSBGZON7 – yes yes
412-521 Verizon PTTSBGZON1 – – yes
412-522 Verizon PTTSBGZON1 2012-04-19 yes yes
412-523 Verizon PTTSBGZON1 – – yes
412-524 Onvoy PTTSBGZON7 2023-01-12 yes yes
412-525 Verizon PTTSBGZON1 2012-09-25 yes yes
412-526 Verizon PTTSBGZON1 – – yes
412-527 Verizon PTTSBGZON1 – – yes
412-528 Lumen PTGSBNZN16 2001-01-22 yes yes
412-529 Verizon PTTSBGZON1 2012-10-12 yes yes
412-530 Windstream PTTSBGZON5 2007-04-23 yes yes
412-531 Verizon PTTSBGZON6 – – yes
412-532 Windstream PTGSBNZN11 – yes yes
412-533 Verizon CLAIRTON – yes yes
412-534 Verizon PTGSBNZN16 – yes yes
412-535 Verizon PTTSBGZON1 2001-01-22 yes yes
412-536 Verizon PTGSBNZN17 – yes yes
412-537 AT&T PTTSBGZON1 2001-09-21 – yes
412-538 AT&T PTGSBNZN15 2010-07-30 yes yes
412-539 FIDIUM ENTERPRISE SERVICES, LLC PTTSBGZON7 – yes yes
412-540 Verizon PTTSBGZON4 – yes yes
412-541 Bandwidth PTGSBNZN18 2019-05-17 yes yes
412-542 Lumen PTGSBNZN10 – yes yes
412-543 Charter PTGSBNZN11 – yes yes
412-544 Verizon PTTSBGZON1 – – yes
412-545 Verizon PTTSBGZON4 – yes yes
412-546 AT&T PTTSBGZON1 2022-08-18 yes yes
412-547 Bandwidth CLAIRTON 2019-05-01 yes yes
412-548 Verizon PTGSBNZN17 2001-02-08 yes yes
412-549 Verizon KITTANNING 2002-11-06 yes yes
412-550 Charter PTTSBGZON1 2018-06-20 yes yes
412-551 AT&T PTTSBGZON1 – – yes
412-552 Verizon PTTSBGZON1 – yes yes
412-553 Verizon PTTSBGZON1 – yes yes
412-554 Verizon GREENSBURG – – yes
412-556 Onvoy PTTSBGZON1 2023-12-11 yes yes
412-557 Verizon PTGSBNZN20 – yes yes
412-558 Verizon GREENSBURG – – yes
412-559 Verizon PTTSBGZON1 – – yes
412-560 Verizon PTTSBGZON1 – yes yes
412-561 Verizon PTTSBGZON6 – yes yes
412-562 Verizon PTTSBGZON1 – – yes
412-563 Verizon PTTSBGZON6 – – yes
412-564 Lumen PTGSBNZN13 2001-02-08 yes yes
412-565 Verizon PTTSBGZON1 – yes yes
412-566 Verizon PTTSBGZON1 – yes yes
412-567 Lumen PTTSBGZON1 – yes yes
412-568 Charter PTGSBNZN12 – yes yes
412-569 Lumen PTGSBNZN13 – yes yes
412-570 SHELCOMM PTTSBGZON1 2023-12-12 – yes
412-571 Verizon PTTSBGZON6 – yes yes
412-572 Verizon PTTSBGZON6 – yes yes
412-573 Windstream PTGSBNZN21 – yes yes
412-574 Verizon PTTSBGZON1 – – yes
412-575 Verizon PTTSBGZON1 – yes yes
412-576 AT&T PTTSBGZON1 – – yes
412-577 Verizon PTTSBGZON1 – yes yes
412-578 Verizon PTTSBGZON1 – – yes
412-579 Verizon PTTSBGZON1 – yes yes
412-580 AT&T PTTSBGZON1 – – yes
412-581 Spok PTTSBGZON1 – – yes
412-582 Verizon UNIONTOWN – – yes
412-583 AT&T PTTSBGZON1 2001-06-19 – yes
412-584 AT&T PTTSBGZON1 2009-02-26 yes yes
412-585 Verizon CRIDERSCOR – – yes
412-586 Windstream PTTSBGZON1 – yes yes
412-587 Verizon PTTSBGZON7 2001-06-19 yes yes
412-588 Telnyx PTTSBGZON1 2017-06-05 yes yes
412-589 T-Mobile PTTSBGZON1 – yes yes
412-590 Spok PTTSBGZON2 – – yes
412-591 Spok PTTSBGZON2 – – yes
412-592 Verizon PTTSBGZON1 2003-08-07 yes yes
412-593 Lumen PTTSBGZON6 – yes yes
412-594 Verizon PTTSBGZON1 – – yes
412-595 Verizon PTGSBNZN12 – yes yes
412-596 AT&T PTTSBGZON1 – – yes
412-597 Spok PTGSBNZN14 – – yes
412-598 Verizon PTTSBGZON1 2018-01-11 yes yes
412-599 Verizon PTGSBNZN19 – yes yes
412-600 Verizon PTTSBGZON1 – – yes
412-601 Verizon GREENSBURG – yes yes
412-602 Spok PTTSBGZON6 – – yes
412-603 Verizon BUTLER – yes yes
412-604 Verizon PTGSBNZN15 – yes yes
412-605 Verizon PTTSBGZON1 – yes yes
412-606 T-Mobile PTTSBGZON1 – yes yes
412-607 T-Mobile PTGSBNZN22 – yes yes
412-608 T-Mobile PTTSBGZON1 – – yes
412-609 T-Mobile PTGSBNZN22 – yes yes
412-610 T-Mobile GREENSBURG – yes yes
412-612 T-Mobile PTGSBNZN22 – yes yes
412-613 AT&T PTTSBGZON1 – – yes
412-614 T-Mobile BUTLER – yes yes
412-615 T-Mobile PTGSBNZN14 2018-08-14 yes yes
412-616 Verizon PTTSBGZON1 2008-11-13 yes yes
412-617 Spok PTGSBNZN14 – – yes
412-618 Onvoy PTTSBGZON1 2015-05-07 yes yes
412-619 Onvoy PTGSBNZN17 2024-05-14 yes yes
412-620 Lumen PTGSBNZN14 – yes yes
412-621 Verizon PTTSBGZON1 – – yes
412-622 Verizon PTTSBGZON1 – yes yes
412-623 Verizon PTTSBGZON1 – yes yes
412-624 Verizon PTTSBGZON1 – – yes
412-625 Lumen PTGSBNZN15 – yes yes
412-626 Lumen PTTSBGZON8 2006-01-04 yes yes
412-627 Verizon PTTSBGZON1 2011-11-07 yes yes
412-628 AT&T PTTSBGZON1 2001-11-01 – yes
412-629 Verizon BUTLER – – yes
412-630 Verizon PTGSBNZN17 – – yes
412-631 Onvoy PTGSBNZN15 – yes yes
412-632 Verizon PTTSBGZON3 – yes yes
412-633 Verizon PTTSBGZON1 – – yes
412-634 Verizon ELIZABETH 2018-11-21 yes yes
412-635 Verizon PTGSBNZN17 – yes yes
412-636 Verizon PTTSBGZON4 – yes yes
412-637 Verizon PTGSBNZN15 2001-09-21 yes yes
412-638 AT&T PTTSBGZON1 – – yes
412-639 Verizon PTTSBGZON1 2012-04-06 yes yes
412-640 Spok PTGSBNZN14 – – yes
412-641 Verizon PTTSBGZON1 – yes yes
412-642 Verizon PTTSBGZON1 – yes yes
412-643 Onvoy PTTSBGZON1 2019-05-20 yes yes
412-644 Verizon PTTSBGZON1 – – yes
412-645 Verizon PTTSBGZON1 – yes yes
412-646 Comcast PTGSBNZN22 – yes yes
412-647 Verizon PTTSBGZON1 – – yes
412-648 Verizon PTTSBGZON1 – – yes
412-649 Spok PTGSBNZN14 – – yes
412-650 Verizon PTGSBNZN11 – yes yes
412-651 Verizon PTTSBGZON1 2005-04-27 yes yes
412-652 AIRUS, INC. - PA PTTSBGZON1 2014-08-22 yes yes
412-653 Verizon PTGSBNZN11 – – yes
412-654 T-Mobile PTTSBGZON5 – yes yes
412-655 Verizon PTGSBNZN11 – – yes
412-656 T-Mobile PTTSBGZON5 – yes yes
412-657 T-Mobile PTTSBGZON1 2002-06-25 yes yes
412-658 Verizon PTTSBGZON1 – – yes
412-659 Onvoy PTGSBNZN22 2023-01-12 yes yes
412-660 Verizon PTTSBGZON1 2012-11-12 yes yes
412-661 Verizon PTTSBGZON8 – – yes
412-662 Lumen PTGSBNZN22 2001-10-18 yes yes
412-663 Onvoy PTGSBNZN16 – yes yes
412-664 Verizon PTGSBNZN10 – yes yes
412-665 Verizon PTTSBGZON8 – yes yes
412-666 Verizon PTGSBNZN22 – yes yes
412-667 Verizon PTTSBGZON1 – yes yes
412-668 Comcast PTTSBGZON6 2004-10-01 yes yes
412-669 Spok PTTSBGZON6 – – yes
412-670 T-Mobile PTTSBGZON1 – yes yes
412-671 AT&T BEAVER FLS – yes yes
412-672 Verizon PTGSBNZN10 – – yes
412-673 Verizon PTGSBNZN10 – – yes
412-674 Onvoy PTGSBNZN12 2023-02-01 yes yes
412-675 Verizon PTGSBNZN10 – yes yes
412-676 Windstream PTTSBGZON1 2016-10-11 yes yes
412-677 Windstream PTGSBNZN13 2001-06-19 yes yes
412-678 Verizon PTGSBNZN10 – – yes
412-679 AT&T PTTSBGZON7 2020-07-28 yes yes
412-680 AT&T PTTSBGZON1 – – yes
412-681 Verizon PTTSBGZON1 – – yes
412-682 Verizon PTTSBGZON1 – yes yes
412-683 Verizon PTTSBGZON1 – – yes
412-684 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN18 – yes yes
412-685 Verizon PTTSBGZON5 – yes yes
412-686 Spok PTGSBNZN14 – – yes
412-687 Verizon PTTSBGZON1 – – yes
412-688 Verizon PTTSBGZON1 – yes yes
412-689 T-Mobile PTTSBGZON1 2011-03-04 yes yes
412-690 Verizon PTTSBGZON1 – yes yes
412-691 Verizon UNIONTOWN – – yes
412-692 Verizon PTTSBGZON1 – yes yes
412-693 Windstream PTGSBNZN11 2001-05-21 yes yes
412-694 NUSO, LLC PTTSBGZON1 2012-10-22 yes yes
412-695 Onvoy PTGSBNZN17 – yes yes
412-696 FIDIUM ENTERPRISE SERVICES, LLC PTTSBGZON3 – yes yes
412-697 Windstream PTTSBGZON1 – – yes
412-698 Spok PTTSBGZON1 – – yes
412-699 Verizon PTTSBGZON1 2016-07-15 yes yes
412-701 Verizon PTGSBNZN21 – yes yes
412-702 Verizon PTGSBNZN22 – yes yes
412-703 NUSO, LLC PTGSBNZN10 2023-02-07 yes yes
412-704 AT&T PTGSBNZN21 – yes yes
412-705 Verizon PTTSBGZON1 – – yes
412-706 ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS PTGSBNZN14 – yes yes
412-707 T-Mobile PTTSBGZON2 2019-01-22 yes yes
412-708 T-Mobile PTTSBGZON1 – – yes
412-709 Verizon PTTSBGZON1 2011-08-30 yes yes
412-710 THE VOICE APPLICATION NETWORK, LLC PTGSBNZN11 2016-10-05 yes yes
412-712 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN21 – yes yes
412-713 Verizon PTTSBGZON1 2012-10-09 yes yes
412-714 AT&T PTGSBNZN11 – yes yes
412-715 Verizon PTTSBGZON1 – yes yes
412-716 T-Mobile PTGSBNZN15 – yes yes
412-717 AT&T PTGSBNZN22 – yes yes
412-718 Spok PTTSBGZON2 – – yes
412-719 Verizon PTTSBGZON1 – – yes
412-720 Verizon PTTSBGZON1 – – yes
412-721 AT&T PTTSBGZON1 – – yes
412-722 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN14 – yes yes
412-723 Lumen PTTSBGZON4 – yes yes
412-725 T-Mobile PTTSBGZON5 – yes yes
412-726 T-Mobile PTTSBGZON1 – – yes
412-727 AT&T PTTSBGZON4 – yes yes
412-728 T-Mobile PTTSBGZON1 – yes yes
412-729 FIDIUM ENTERPRISE SERVICES, LLC ELIZABETH – yes yes
412-730 NUSO, LLC PTTSBGZON1 2020-10-27 yes yes
412-731 Verizon PTTSBGZON4 – – yes
412-732 Verizon PTTSBGZON2 – yes yes
412-733 AT&T PTTSBGZON7 – yes yes
412-734 Verizon PTTSBGZON2 – – yes
412-735 CITYNET PENNSYLVANIA, LLC - PA PTTSBGZON1 2005-07-09 yes yes
412-736 AT&T PTTSBGZON1 – – yes
412-737 Verizon PTTSBGZON1 2011-01-25 yes yes
412-738 Verizon PTTSBGZON1 2012-10-12 yes yes
412-739 Spok PTTSBGZON2 – – yes
412-740 Verizon PTTSBGZON1 – yes yes
412-741 Verizon PTGSBNZN16 – – yes
412-742 Verizon PTTSBGZON1 2012-06-18 yes yes
412-743 Onvoy CLAIRTON 2019-03-28 yes yes
412-744 Verizon PTGSBNZN21 – yes yes
412-745 FULL SERVICE NETWORK LP PTTSBGZON1 – – yes
412-746 FINGER LAKES TECHNOLOGIES GROUP, INC. - PA PTTSBGZON1 2020-09-01 yes yes
412-747 Verizon PTGSBNZN14 – – yes
412-748 Bandwidth PTGSBNZN17 – yes yes
412-749 Verizon PTGSBNZN16 – – yes
412-750 8x8 PTTSBGZON1 2026-07-06 yes no
412-751 Verizon PTGSBNZN10 – – yes
412-752 Bandwidth PTTSBGZON1 – yes yes
412-753 Windstream PTGSBNZN18 – yes yes
412-754 Verizon PTGSBNZN10 – yes yes
412-755 Onvoy PTGSBNZN18 – yes yes
412-756 Lumen PTGSBNZN19 – yes yes
412-757 T-Mobile PTTSBGZON6 – yes yes
412-758 AT&T PTTSBGZON1 2001-11-08 – yes
412-759 AT&T PTTSBGZON1 – – yes
412-760 Verizon PTTSBGZON1 – – yes
412-761 Verizon PTTSBGZON2 – – yes
412-762 Verizon PTTSBGZON1 – – yes
412-763 Bandwidth PTGSBNZN10 2020-10-12 yes yes
412-764 Onvoy PTTSBGZON4 2023-02-17 yes yes
412-765 Verizon PTTSBGZON1 – yes yes
412-766 Verizon PTTSBGZON2 – – yes
412-767 Verizon PTGSBNZN19 – yes yes
412-768 Verizon PTTSBGZON1 – – yes
412-769 IP HORIZON LLC PTTSBGZON2 2020-09-16 yes yes
412-770 Lumen PTTSBGZON1 – yes yes
412-771 Verizon PTTSBGZON7 – – yes
412-772 AT&T PTTSBGZON3 – yes yes
412-773 AT&T PTTSBGZON1 2001-11-15 yes yes
412-774 Onvoy PTTSBGZON1 – yes yes
412-775 FULL SERVICE NETWORK LP PTTSBGZON3 2018-10-29 yes yes
412-776 Onvoy PTGSBNZN15 – yes yes
412-777 Verizon PTTSBGZON7 – – yes
412-778 Verizon PTTSBGZON7 – yes yes
412-779 Verizon PTTSBGZON1 – – yes
412-780 Verizon PTTSBGZON1 – – yes
412-781 Verizon PTTSBGZON3 – – yes
412-782 Verizon PTTSBGZON3 – yes yes
412-783 Bandwidth PTGSBNZN16 2020-11-03 yes yes
412-784 Verizon PTTSBGZON3 – yes yes
412-785 Vonage PTTSBGZON1 2017-09-12 yes yes
412-786 Spok PTTSBGZON2 – – yes
412-787 Verizon PTGSBNZN14 – – yes
412-788 Verizon PTGSBNZN14 – – yes
412-789 Verizon PTTSBGZON1 – yes yes
412-790 Onvoy PTGSBNZN11 2020-05-13 yes yes
412-791 Charter PTTSBGZON1 – yes yes
412-792 T-Mobile PTTSBGZON7 2022-03-28 yes yes
412-793 Verizon PTGSBNZN21 – – yes
412-794 Onvoy PTGSBNZN20 – yes yes
412-795 Verizon PTGSBNZN21 – – yes
412-796 Onvoy PTGSBNZN11 2023-09-12 yes yes
412-797 T-Mobile PTGSBNZN12 2022-03-28 yes yes
412-798 Verizon PTGSBNZN21 – – yes
412-799 Verizon PTTSBGZON3 – yes yes
412-800 Onvoy PTGSBNZN10 – yes yes
412-801 Verizon PTTSBGZON2 – yes yes
412-802 Verizon PTTSBGZON1 – yes yes
412-803 Verizon PTTSBGZON1 – – yes
412-804 Verizon PTTSBGZON1 – yes yes
412-805 T-Mobile PTTSBGZON1 – – yes
412-806 Bandwidth PTTSBGZON1 2022-10-19 yes yes
412-807 Verizon PTTSBGZON1 2008-04-18 yes yes
412-808 Verizon PTTSBGZON7 – yes yes
412-809 Verizon PTGSBNZN14 – – yes
412-810 Verizon PTGSBNZN22 – yes yes
412-812 T-Mobile PTTSBGZON1 – yes yes
412-813 Verizon ELIZABETH 2020-09-17 yes yes
412-814 Onvoy PTTSBGZON1 2024-06-07 yes yes
412-815 Bandwidth PTTSBGZON1 2019-03-01 yes yes
412-816 Verizon PTGSBNZN22 – yes yes
412-817 AT&T GREENSBURG – yes yes
412-818 AT&T PTTSBGZON1 – – yes
412-819 Verizon PTTSBGZON6 – yes yes
412-820 Verizon PTGSBNZN20 – yes yes
412-821 Verizon PTTSBGZON3 – – yes
412-822 Verizon PTTSBGZON3 – yes yes
412-823 Verizon PTGSBNZN22 – – yes
412-824 Verizon PTGSBNZN22 – – yes
412-825 Verizon PTGSBNZN22 – – yes
412-826 Verizon PTGSBNZN20 – – yes
412-827 Bandwidth PTGSBNZN21 2022-01-20 yes yes
412-828 Verizon PTGSBNZN20 – – yes
412-829 Verizon PTGSBNZN22 – – yes
412-830 Onvoy PTTSBGZON6 2023-10-09 yes yes
412-831 Verizon PTGSBNZN12 – – yes
412-832 Charter PTGSBNZN21 – yes yes
412-833 Verizon PTGSBNZN12 – – yes
412-834 Verizon PTTSBGZON1 2023-10-12 yes yes
412-835 Verizon PTGSBNZN12 – – yes
412-836 Onvoy PTGSBNZN14 2024-06-08 yes yes
412-837 Windstream PTGSBNZN17 2005-12-01 yes yes
412-838 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN13 – yes yes
412-839 ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS PTGSBNZN13 – yes yes
412-841 Verizon PTTSBGZON1 – – yes
412-842 CORE COMMUNICATIONS, INC. - PA PTTSBGZON1 2018-06-06 yes yes
412-843 Verizon PTGSBNZN22 2001-07-19 yes yes
412-844 HD CARRIER LLC PTTSBGZON8 2019-03-25 yes yes
412-846 AT&T PTTSBGZON1 2025-09-25 yes yes
412-847 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN17 – yes yes
412-848 Verizon PTTSBGZON1 – – yes
412-849 Verizon PTTSBGZON1 – – yes
412-850 ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS PTGSBNZN19 – yes yes
412-851 Verizon PTGSBNZN12 – yes yes
412-852 Verizon PTTSBGZON1 2011-08-11 yes yes
412-853 AT&T PTTSBGZON1 2001-09-28 – yes
412-854 Verizon PTGSBNZN12 – – yes
412-855 Verizon PTTSBGZON1 – – yes
412-856 Verizon PTGSBNZN22 – – yes
412-857 T-Mobile PTGSBNZN14 2015-10-08 yes yes
412-858 Verizon PTGSBNZN22 – yes yes
412-859 Verizon PTGSBNZN15 – – yes
412-860 Verizon PTTSBGZON1 – – yes
412-861 T-Mobile PTGSBNZN13 – yes yes
412-862 Verizon PTTSBGZON1 – yes yes
412-863 T-Mobile PTTSBGZON1 2012-04-09 yes yes
412-864 Verizon PTTSBGZON1 2008-05-13 yes yes
412-865 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN15 – yes yes
412-866 Onvoy PTTSBGZON5 2020-05-13 yes yes
412-867 Verizon PTTSBGZON1 – yes yes
412-868 AT&T PTTSBGZON1 2025-11-10 yes yes
412-869 AHOI LLC PTTSBGZON1 2026-03-25 yes yes
412-870 T-Mobile PTGSBNZN15 2022-06-15 yes yes
412-871 AT&T PTTSBGZON4 – yes yes
412-872 Verizon PTGSBNZN10 – yes yes
412-873 Onvoy PTTSBGZON6 2023-09-12 yes yes
412-874 Verizon PTTSBGZON1 – – yes
412-875 AT&T PTTSBGZON7 – yes yes
412-876 T-Mobile PTGSBNZN18 2022-11-16 yes yes
412-877 AT&T PTTSBGZON1 – – yes
412-879 Peerless ELIZABETH – yes yes
412-880 Verizon PTTSBGZON1 – yes yes
412-881 Verizon PTTSBGZON6 – – yes
412-882 Verizon PTTSBGZON6 – – yes
412-883 T-Mobile PTGSBNZN14 2017-07-07 yes yes
412-884 Verizon PTTSBGZON6 – – yes
412-885 Verizon PTTSBGZON6 – – yes
412-886 Verizon PTTSBGZON6 – yes yes
412-887 T-Mobile PTGSBNZN10 2022-03-28 yes yes
412-888 CORE COMMUNICATIONS, INC. - PA PTTSBGZON1 2012-06-26 yes yes
412-889 AT&T PTTSBGZON1 – – yes
412-891 Bandwidth PTGSBNZN20 2019-02-14 yes yes
412-892 Verizon PTTSBGZON6 – yes yes
412-893 AT&T PTGSBNZN15 – yes yes
412-894 Windstream PTTSBGZON1 – yes yes
412-895 Onvoy PTGSBNZN13 2023-09-12 yes yes
412-896 AT&T PTGSBNZN10 – yes yes
412-897 AT&T PTTSBGZON1 – – yes
412-898 WAVENATION, LLC PTTSBGZON1 2025-12-12 yes yes
412-899 Onvoy PTTSBGZON3 2020-05-13 yes yes
412-900 Onvoy PTGSBNZN14 2015-03-25 yes yes
412-901 T-Mobile PTTSBGZON5 – yes yes
412-902 Lumen PTGSBNZN22 – yes yes
412-903 Verizon PTGSBNZN18 – yes yes
412-904 AT&T PTTSBGZON1 – yes yes
412-905 Verizon PTTSBGZON1 – yes yes
412-906 T-Mobile PTTSBGZON1 – yes yes
412-908 T-Mobile BEAVER FLS – yes yes
412-909 T-Mobile PTTSBGZON1 2017-10-24 yes yes
412-910 Onvoy PTTSBGZON2 2020-05-13 yes yes
412-912 Onvoy PTTSBGZON1 2019-12-24 yes yes
412-913 Verizon PTTSBGZON1 – – yes
412-914 Verizon PTGSBNZN13 – yes yes
412-915 AT&T PTTSBGZON1 – – yes
412-916 AT&T PTTSBGZON1 – – yes
412-917 Spok PTTSBGZON7 – – yes
412-918 AT&T PTTSBGZON1 – yes yes
412-919 Verizon PTTSBGZON7 – yes yes
412-920 Verizon PTTSBGZON7 – – yes
412-921 Verizon PTTSBGZON7 – – yes
412-922 Verizon PTTSBGZON7 – – yes
412-923 Verizon PTTSBGZON7 – yes yes
412-924 FIDIUM ENTERPRISE SERVICES, LLC PTTSBGZON8 – yes yes
412-925 Verizon PTTSBGZON1 2011-05-11 yes yes
412-926 Windstream PTTSBGZON1 2007-10-30 yes yes
412-927 Lumen PTGSBNZN10 – yes yes
412-928 Verizon PTTSBGZON7 – – yes
412-929 Verizon PTTSBGZON7 – yes yes
412-930 Verizon PTTSBGZON1 2014-05-14 yes yes
412-931 Verizon PTTSBGZON2 – – yes
412-932 Comcast PTTSBGZON1 – yes yes
412-933 T-Mobile PTTSBGZON1 2016-05-26 yes yes
412-935 Verizon PTTSBGZON1 2018-02-27 yes yes
412-937 Verizon PTTSBGZON7 – – yes
412-938 AT&T PTTSBGZON7 2026-01-27 yes yes
412-939 Verizon PTTSBGZON2 – yes yes
412-940 TPx PTTSBGZON1 2026-04-10 yes no
412-941 Onvoy PTTSBGZON4 2020-10-26 yes yes
412-942 FIDIUM ENTERPRISE SERVICES, LLC PTTSBGZON6 – yes yes
412-943 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN11 – yes yes
412-944 AT&T PTTSBGZON1 2011-04-06 yes yes
412-945 Bandwidth CLAIRTON – yes yes
412-946 Onvoy ELIZABETH – yes yes
412-947 Bandwidth PTTSBGZON6 2020-09-03 yes yes
412-948 FIDIUM ENTERPRISE SERVICES, LLC PTGSBNZN10 – yes yes
412-949 Spok PTTSBGZON7 – – yes
412-951 AT&T PTTSBGZON1 – – yes
412-952 Verizon PTTSBGZON1 – – yes
412-953 AT&T PTTSBGZON1 – – yes
412-954 Verizon PTTSBGZON8 – yes yes
412-955 Spok PTTSBGZON2 – – yes
412-956 AT&T PTTSBGZON1 – – yes
412-958 Spok PTTSBGZON7 – – yes
412-960 Onvoy PTTSBGZON7 – yes yes
412-961 Verizon PTTSBGZON3 – yes yes
412-963 Verizon PTGSBNZN19 – – yes
412-965 Verizon PTTSBGZON1 – – yes
412-967 Verizon PTGSBNZN19 – – yes
412-968 Verizon PTGSBNZN19 – yes yes
412-969 AT&T PTTSBGZON1 2001-11-01 – yes
412-970 Spok PTTSBGZON6 – – yes
412-972 Verizon ROCHESTER – yes yes
412-973 AT&T PTTSBGZON1 – – yes
412-974 Verizon ROCHESTER – – yes
412-977 Verizon PTTSBGZON1 – – yes
412-978 Spok PTGSBNZN14 – – yes
412-979 AT&T PTTSBGZON1 – – yes
412-980 AT&T PTTSBGZON1 – – yes
412-981 Onvoy PTGSBNZN17 2020-07-02 yes yes
412-983 T-Mobile PTTSBGZON1 2001-03-20 – yes
412-990 Onvoy PTGSBNZN21 2020-05-13 yes yes
412-991 Onvoy PTGSBNZN12 2020-07-02 yes yes
412-992 Verizon PTTSBGZON1 – yes yes
412-994 Verizon WASHINGTON – yes yes
412-995 AT&T PTTSBGZON1 – yes yes
412-996 AT&T PTTSBGZON1 – – yes
412-997 Verizon WASHINGTON – – yes
412-998 Verizon PTGSBNZN13 – yes yes
412-999 AT&T PTTSBGZON1 – – yes

Frequently asked

How many prefixes does area code 412 have?

762 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,620 thousand-number ranges across 32 rate centers.

What do the first three digits after 412 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 412 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 412 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 493 of 412'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