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

Area code 415 prefixes

785 of the 786 possible NXX blocks are assigned in area code 415 (99.9% of capacity), spread across 14 rate centers and 33 holders. The largest holders are PACIFIC BELL (326 blocks, 41.5%), NEW CINGULAR WIRELESS PCS, LLC (67 blocks, 8.5%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (48 blocks, 6.1%). Grouped by brand, AT&T accounts for 416 blocks; brand-attributable holders cover 97% 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 2001-01-25 to 2026-07-22, with 33 blocks handed out in 2014 alone. 495 blocks (63%) 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. 137 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

785 assigned blocks of 786
14 rate centers
33 holders of record
63% in thousands-block pooling

Largest holders in 415

Holder of record, as NANPA names itBrandBlocksShare
PACIFIC BELL AT&T 326 41.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 67 8.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 48 6.1%
T-MOBILE USA, INC. T-Mobile 45 5.7%
ONVOY, LLC - CA Onvoy 40 5.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 36 4.6%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 35 4.5%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 34 4.3%
METROPCS, INC. T-Mobile 22 2.8%
SPOK, INC. Spok 21 2.7%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 18 2.3%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 17 2.2%

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 785 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
415-200 IP HORIZON LLC SNFC CNTRL – yes yes
415-201 UTILITY TELECOM GROUP, LLC - CA SNFC CNTRL – – yes
415-202 AT&T SNFC CNTRL – yes yes
415-203 AT&T SNFC CNTRL – – yes
415-204 UTILITY TELECOM GROUP, LLC - CA SNFC CNTRL – – yes
415-205 AT&T SNFC CNTRL – – yes
415-206 AT&T SNFC CNTRL – – yes
415-207 Spok SNFC CNTRL – – yes
415-208 AT&T NOVATO 2026-07-22 yes yes
415-209 Frontier NOVATO – yes yes
415-210 Spok SNFC CNTRL – – yes
415-212 Verizon SNFC CNTRL 2014-10-24 yes yes
415-213 TPx SNFC MT-EV – yes yes
415-214 Verizon SNFC CNTRL 2014-10-21 yes yes
415-215 AT&T SNFC CNTRL – – yes
415-216 AT&T SNFC CNTRL – yes yes
415-217 AT&T SNFC CNTRL – yes yes
415-218 AT&T SNFC CNTRL – – yes
415-219 Spok SNFC CNTRL – – yes
415-220 Spok SNFC CNTRL – – yes
415-221 AT&T SNFC MT-EV – – yes
415-222 AT&T SNFC CNTRL – – yes
415-223 Onvoy SAN RAFAEL – yes yes
415-224 Spok SNFC CNTRL – – yes
415-225 T-Mobile SNFC CNTRL – yes yes
415-226 Lumen SAN RAFAEL – yes yes
415-227 AT&T SNFC CNTRL – yes yes
415-228 Verizon SNFC CNTRL – – yes
415-229 AT&T SNFC CNTRL – – yes
415-230 Onvoy SNFC CNTRL 2007-09-15 yes yes
415-231 T-Mobile SNFC MT-EV 2012-11-29 yes yes
415-232 UTILITY TELECOM GROUP, LLC - CA SNFC CNTRL – – yes
415-233 Lumen SAN RAFAEL – yes yes
415-234 Onvoy IGNACIO – yes yes
415-235 T-Mobile SNFC CNTRL – yes yes
415-236 AT&T INVERNESS – yes yes
415-237 Lumen INVERNESS – yes yes
415-238 Verizon SNFC CNTRL – yes yes
415-239 AT&T SNFC JUNPR – – yes
415-240 Lumen SNFC CNTRL – yes yes
415-241 AT&T SNFC CNTRL – – yes
415-242 AT&T SNFC MT-EV – – yes
415-243 AT&T SNFC CNTRL – yes yes
415-244 AT&T SNFC CNTRL – – yes
415-245 Spok SNFC CNTRL – – yes
415-246 AT&T NOVATO – – yes
415-247 AT&T SNFC CNTRL – yes yes
415-248 AT&T SNFC CNTRL – yes yes
415-249 AT&T SNFC CNTRL – – yes
415-250 AT&T SAN RAFAEL – – yes
415-251 Onvoy IGNACIO 2006-11-21 yes yes
415-252 AT&T SNFC CNTRL – – yes
415-253 Spok SNFC CNTRL – – yes
415-254 AT&T SNFC CNTRL – – yes
415-255 AT&T SNFC CNTRL – yes yes
415-256 AT&T SAN RAFAEL – yes yes
415-257 AT&T SAN RAFAEL – – yes
415-258 AT&T SAN RAFAEL – – yes
415-259 AT&T SAN RAFAEL – yes yes
415-260 AT&T SNFC CNTRL – – yes
415-261 T-Mobile SAN RAFAEL 2001-09-21 yes yes
415-262 AT&T SNFC CNTRL – – yes
415-263 AT&T SNFC CNTRL – yes yes
415-264 Verizon SNFC CNTRL – – yes
415-265 Verizon SNFC CNTRL – – yes
415-266 TPx SNFC CNTRL 2011-07-25 yes yes
415-267 AT&T SNFC CNTRL – yes yes
415-268 AT&T SNFC CNTRL – – yes
415-269 AT&T SNFC CNTRL – – yes
415-270 Spok SNFC CNTRL – – yes
415-271 Verizon SNFC CNTRL – – yes
415-272 AT&T SAUSALITO – yes yes
415-273 AT&T SNFC CNTRL – yes yes
415-274 AT&T SNFC CNTRL – yes yes
415-275 Verizon SAUSALITO – yes yes
415-276 AT&T SNFC CNTRL – – yes
415-277 AT&T SNFC CNTRL – – yes
415-278 AT&T SNFC CNTRL – yes yes
415-279 AT&T SNFC CNTRL – – yes
415-280 Spok SNFC CNTRL – – yes
415-281 AT&T SNFC CNTRL – – yes
415-282 AT&T SNFC CNTRL – – yes
415-283 AT&T SNFC CNTRL – yes yes
415-284 AT&T SNFC CNTRL – – yes
415-285 AT&T SNFC CNTRL – – yes
415-286 T-Mobile SNFC MT-EV 2001-05-18 yes yes
415-287 Onvoy SNFC JUNPR – yes yes
415-288 AT&T SNFC CNTRL – – yes
415-289 AT&T SAUSALITO – yes yes
415-290 AT&T SNFC CNTRL – – yes
415-291 AT&T SNFC CNTRL – yes yes
415-292 AT&T SNFC CNTRL – – yes
415-293 AT&T SNFC CNTRL – – yes
415-294 Lumen SNFC JUNPR – yes yes
415-295 Verizon SAN RAFAEL – yes yes
415-296 AT&T SNFC CNTRL – yes yes
415-297 AT&T SNFC CNTRL – – yes
415-298 AT&T SNFC CNTRL – – yes
415-299 T-Mobile SAN RAFAEL 2001-12-26 yes yes
415-300 AT&T SAN RAFAEL – yes yes
415-301 T-Mobile NOVATO – yes yes
415-302 Verizon SAN RAFAEL – – yes
415-303 Spok SNFC CNTRL – – yes
415-304 T-Mobile SNFC CNTRL 2015-04-13 yes yes
415-305 T-Mobile SNFC CNTRL – yes yes
415-306 Verizon SAN RAFAEL – yes yes
415-307 AT&T SNFC CNTRL – – yes
415-308 Verizon SNFC CNTRL – – yes
415-309 AT&T SNFC CNTRL – – yes
415-310 Verizon SNFC CNTRL – – yes
415-312 T-Mobile SNFC CNTRL – yes yes
415-313 Spok SNFC CNTRL – – yes
415-314 Verizon SNFC CNTRL – yes yes
415-315 AT&T SNFC CNTRL – yes yes
415-316 T-Mobile BELVEDERE 2011-08-09 yes yes
415-317 Verizon SNFC MT-EV – yes yes
415-318 AT&T SNFC CNTRL – yes yes
415-319 Verizon SNFC MT-EV 2014-10-21 yes yes
415-320 T-Mobile NOVATO 2001-12-26 yes yes
415-321 TPx SNFC CNTRL – yes yes
415-322 Bandwidth MILLVALLEY – yes yes
415-323 Bandwidth NICASIO – yes yes
415-324 Lumen SAUSALITO – yes yes
415-325 Lumen SNFC JUNPR – yes yes
415-326 Bandwidth MILLVALLEY – yes yes
415-327 American Messaging SNFC CNTRL – – yes
415-328 Verizon NOVATO – yes yes
415-329 Onvoy CORTEMADRA – yes yes
415-330 AT&T SNFC JUNPR – – yes
415-331 AT&T SAUSALITO – – yes
415-332 AT&T SAUSALITO – – yes
415-333 AT&T SNFC JUNPR – – yes
415-334 AT&T SNFC JUNPR – – yes
415-335 Lumen SNFC JUNPR – yes yes
415-336 T-Mobile SNFC CNTRL – yes yes
415-337 AT&T SNFC JUNPR – – yes
415-338 AT&T SNFC JUNPR – yes yes
415-339 AT&T SAUSALITO – yes yes
415-340 Bandwidth SNFC MT-EV 2011-08-04 yes yes
415-341 ASTOUND BROADBAND, LLC - CA SNFC CNTRL – yes yes
415-342 AT&T SAN RAFAEL – yes yes
415-343 Verizon SNFC CNTRL 2001-05-11 yes yes
415-344 AT&T SNFC CNTRL – yes yes
415-345 AT&T SNFC CNTRL – – yes
415-346 AT&T SNFC CNTRL – – yes
415-347 AT&T SNFC JUNPR – yes yes
415-348 AT&T SNFC CNTRL – yes yes
415-349 ASTOUND BROADBAND, LLC - CA SNFC JUNPR – yes yes
415-350 AT&T SNFC CNTRL – – yes
415-351 AT&T SNFC CNTRL – yes yes
415-352 AT&T SNFC CNTRL – yes yes
415-353 AT&T SNFC CNTRL – – yes
415-354 Lumen SNFC CNTRL – – yes
415-355 AT&T SNFC CNTRL – yes yes
415-356 AT&T SNFC CNTRL – – yes
415-357 AT&T SNFC CNTRL – – yes
415-358 Onvoy SNFC CNTRL – – yes
415-359 AT&T SNFC CNTRL – yes yes
415-360 Verizon MILLVALLEY – yes yes
415-361 AT&T SNFC CNTRL 2011-08-18 yes yes
415-362 AT&T SNFC CNTRL – – yes
415-363 Peerless SNFC CNTRL 2009-02-14 yes yes
415-364 AT&T SNFC CNTRL – yes yes
415-365 Verizon SNFC CNTRL 2001-05-11 – yes
415-366 Onvoy BELVEDERE – yes yes
415-367 Verizon SAUSALITO – yes yes
415-368 Verizon SNFC MT-EV – yes yes
415-369 AT&T SNFC CNTRL – yes yes
415-370 AT&T SNFC CNTRL – – yes
415-371 AT&T SNFC CNTRL – yes yes
415-372 American Messaging SNFC CNTRL – – yes
415-373 Lumen SNFC CNTRL – yes yes
415-374 AT&T SNFC CNTRL – yes yes
415-375 Lumen SNFC MT-EV – yes yes
415-376 Onvoy SNFC CNTRL – – yes
415-377 T-Mobile SNFC CNTRL – yes yes
415-378 T-Mobile SNFC CNTRL – yes yes
415-379 AT&T SNFC MT-EV – yes yes
415-380 AT&T MILLVALLEY – – yes
415-381 AT&T MILLVALLEY – – yes
415-382 AT&T IGNACIO – – yes
415-383 AT&T MILLVALLEY – – yes
415-384 AT&T MILLVALLEY – yes yes
415-385 Verizon SNFC CNTRL – – yes
415-386 AT&T SNFC MT-EV – – yes
415-387 AT&T SNFC MT-EV – – yes
415-388 AT&T MILLVALLEY – – yes
415-389 AT&T MILLVALLEY – – yes
415-390 Bandwidth POINTREYES – yes yes
415-391 AT&T SNFC CNTRL – – yes
415-392 AT&T SNFC CNTRL – – yes
415-393 AT&T SNFC CNTRL – yes yes
415-394 AT&T SNFC CNTRL – – yes
415-395 AT&T SNFC CNTRL – yes yes
415-396 AT&T SNFC CNTRL – – yes
415-397 AT&T SNFC CNTRL – – yes
415-398 AT&T SNFC CNTRL – – yes
415-399 AT&T SNFC CNTRL – – yes
415-400 RACE TELECOMMUNICATIONS, INC. - CA SNFC CNTRL 2009-01-14 yes yes
415-401 AT&T SNFC CNTRL – yes yes
415-402 AT&T SNFC CNTRL – – yes
415-403 AT&T SNFC CNTRL – yes yes
415-404 AT&T SNFC JUNPR – yes yes
415-405 AT&T SNFC JUNPR – yes yes
415-406 AT&T SNFC JUNPR – yes yes
415-407 Verizon SNFC CNTRL – – yes
415-408 AT&T NOVATO – yes yes
415-409 AT&T SNFC CNTRL – yes yes
415-410 TPx SNFC MT-EV – yes yes
415-412 AT&T SNFC CNTRL – – yes
415-413 AT&T CORTEMADRA – yes yes
415-414 American Messaging SNFC CNTRL – – yes
415-415 WIDE VOICE, LLC - CA SAUSALITO 2025-06-25 yes yes
415-416 WIDE VOICE, LLC - CA SNFC CNTRL 2013-11-18 yes yes
415-417 Onvoy SNFC CNTRL – yes yes
415-418 Lumen SNFC MT-EV – yes yes
415-419 TPx SAN RAFAEL – yes yes
415-420 AT&T SNFC CNTRL – – yes
415-421 AT&T SNFC CNTRL – yes yes
415-422 AT&T SNFC MT-EV – yes yes
415-423 Verizon SNFC CNTRL 2012-06-25 yes yes
415-424 Lumen SNFC MT-EV – yes yes
415-425 T-Mobile SNFC MT-EV 2001-10-18 – yes
415-426 T-Mobile SNFC CNTRL 2011-10-24 yes yes
415-427 AT&T SNFC CNTRL – – yes
415-428 NORTH COUNTY COMMUNICATION CORPORATION - CA SNFC CNTRL – – yes
415-429 T-Mobile SNFC CNTRL 2012-09-04 yes yes
415-430 TPx SNFC CNTRL – yes yes
415-431 AT&T SNFC CNTRL – – yes
415-432 Peerless SNFC CNTRL 2011-10-24 yes yes
415-433 AT&T SNFC CNTRL – yes yes
415-434 AT&T SNFC CNTRL – yes yes
415-435 AT&T BELVEDERE – – yes
415-436 AT&T SNFC CNTRL – – yes
415-437 AT&T SNFC CNTRL – – yes
415-438 AT&T SNFC CNTRL – yes yes
415-439 AT&T SNFC CNTRL – yes yes
415-440 AT&T SNFC CNTRL – – yes
415-441 AT&T SNFC CNTRL – – yes
415-442 AT&T SNFC CNTRL – – yes
415-443 Spok SNFC JUNPR – – yes
415-444 AT&T SAN RAFAEL – yes yes
415-445 AT&T SNFC CNTRL – yes yes
415-446 AT&T SAN RAFAEL – yes yes
415-447 AT&T SNFC CNTRL – – yes
415-448 Verizon SAN RAFAEL – yes yes
415-449 Onvoy SNFC CNTRL – – yes
415-450 Verizon SAN RAFAEL 2001-05-11 yes yes
415-451 AT&T SAN RAFAEL – – yes
415-452 AT&T SNFC JUNPR – yes yes
415-453 AT&T SAN RAFAEL – – yes
415-454 AT&T SAN RAFAEL – – yes
415-455 AT&T SAN RAFAEL – yes yes
415-456 AT&T SAN RAFAEL – – yes
415-457 AT&T SAN RAFAEL – – yes
415-458 AT&T SAN RAFAEL – yes yes
415-459 AT&T SAN RAFAEL – – yes
415-460 AT&T SAN RAFAEL – yes yes
415-461 AT&T SAN RAFAEL – – yes
415-462 Lumen SAN RAFAEL – yes yes
415-463 Lumen SNFC MT-EV 2012-05-25 yes yes
415-464 AT&T SAN RAFAEL – yes yes
415-465 T-Mobile SAUSALITO 2002-01-29 yes yes
415-466 Verizon SNFC JUNPR – yes yes
415-467 AT&T SNFC JUNPR – – yes
415-468 AT&T SNFC JUNPR – – yes
415-469 AT&T SNFC JUNPR – yes yes
415-470 Verizon SNFC CNTRL 2011-08-23 yes yes
415-471 Onvoy SNFC CNTRL – yes yes
415-472 AT&T SAN RAFAEL – yes yes
415-473 AT&T SAN RAFAEL – – yes
415-474 AT&T SNFC CNTRL – – yes
415-475 Onvoy IGNACIO – yes yes
415-476 AT&T SNFC MT-EV – – yes
415-477 AT&T SNFC CNTRL – yes yes
415-479 AT&T SAN RAFAEL – – yes
415-480 Onvoy SAUSALITO – yes yes
415-481 Lumen SNFC JUNPR 2012-11-23 yes yes
415-482 AT&T SAN RAFAEL – yes yes
415-483 Lumen IGNACIO – yes yes
415-484 Bandwidth STNSN-BLNS – yes yes
415-485 AT&T SAN RAFAEL – – yes
415-486 AT&T SNFC CNTRL – yes yes
415-487 AT&T SNFC CNTRL – – yes
415-488 AT&T SAN RAFAEL – yes yes
415-489 Lumen SNFC CNTRL – yes yes
415-490 Verizon SNFC CNTRL – yes yes
415-491 AT&T SAN RAFAEL – – yes
415-492 AT&T SAN RAFAEL – yes yes
415-493 Lumen NOVATO – yes yes
415-494 Verizon SNFC JUNPR – yes yes
415-495 AT&T SNFC CNTRL – yes yes
415-496 Lumen CORTEMADRA – yes yes
415-497 AT&T SAN RAFAEL 2001-12-26 – yes
415-498 AT&T SNFC CNTRL – yes yes
415-499 AT&T SAN RAFAEL – yes yes
415-500 Onvoy SNFC CNTRL – yes yes
415-501 AT&T SNFC CNTRL – yes yes
415-502 AT&T SNFC MT-EV – – yes
415-503 AT&T SNFC CNTRL – yes yes
415-504 AT&T SNFC MT-EV – yes yes
415-505 T-Mobile SNFC CNTRL – yes yes
415-506 AT&T IGNACIO – yes yes
415-507 AT&T SAN RAFAEL – yes yes
415-508 AT&T SNFC JUNPR – yes yes
415-509 AT&T SNFC CNTRL – – yes
415-510 Lumen SNFC CNTRL 2014-12-09 yes yes
415-512 AT&T SNFC CNTRL – – yes
415-513 Lumen SNFC CNTRL – yes yes
415-514 AT&T SNFC MT-EV – – yes
415-515 Verizon SNFC CNTRL – – yes
415-516 Verizon SNFC CNTRL – – yes
415-517 Verizon SNFC CNTRL – – yes
415-518 AT&T SNFC CNTRL – – yes
415-519 AT&T SNFC CNTRL – – yes
415-520 Onvoy SNFC CNTRL – – yes
415-521 Verizon SAN RAFAEL 2013-02-18 yes yes
415-522 AT&T SNFC CNTRL – – yes
415-523 Peerless SNFC CNTRL 2011-06-14 yes yes
415-524 Lumen SAN RAFAEL – yes yes
415-525 UTILITY TELECOM GROUP, LLC - CA SNFC CNTRL 2007-08-16 yes yes
415-526 TPx SAN RAFAEL – yes yes
415-527 Lumen SNFC CNTRL 2012-05-22 yes yes
415-528 Lumen SNFC JUNPR 2012-01-30 yes yes
415-529 Onvoy SNFC CNTRL – yes yes
415-530 Lumen SNFC CNTRL 2014-10-02 yes yes
415-531 Verizon SNFC CNTRL – – yes
415-532 Onvoy SAN RAFAEL – yes yes
415-533 AT&T SNFC CNTRL – – yes
415-534 Onvoy STNSN-BLNS – yes yes
415-535 Verizon SNFC CNTRL 2012-05-21 yes yes
415-536 AT&T SNFC CNTRL – – yes
415-537 AT&T SNFC CNTRL – yes yes
415-538 AT&T SNFC CNTRL – – yes
415-539 AT&T SNFC CNTRL 2012-10-04 yes yes
415-540 Spok SNFC CNTRL – – yes
415-541 AT&T SNFC CNTRL – yes yes
415-542 AT&T SNFC CNTRL – yes yes
415-543 AT&T SNFC CNTRL – – yes
415-544 AT&T SNFC CNTRL – yes yes
415-545 AT&T SNFC CNTRL – yes yes
415-546 AT&T SNFC CNTRL – – yes
415-547 AT&T SNFC CNTRL – yes yes
415-548 Onvoy CORTEMADRA 2002-11-03 yes yes
415-549 Lumen SNFC CNTRL 2013-03-22 yes yes
415-550 AT&T SNFC CNTRL – – yes
415-551 AT&T SNFC CNTRL – – yes
415-552 AT&T SNFC CNTRL – – yes
415-553 AT&T SNFC CNTRL – yes yes
415-554 AT&T SNFC CNTRL – – yes
415-556 AT&T SNFC CNTRL – – yes
415-557 AT&T SNFC CNTRL – – yes
415-558 AT&T SNFC CNTRL – – yes
415-559 T-Mobile SNFC CNTRL – yes yes
415-560 Spok SNFC CNTRL – – yes
415-561 AT&T SNFC CNTRL – – yes
415-562 TPx SNFC JUNPR – yes yes
415-563 AT&T SNFC CNTRL – – yes
415-564 AT&T SNFC MT-EV – – yes
415-565 AT&T SNFC CNTRL – yes yes
415-566 AT&T SNFC MT-EV – – yes
415-567 AT&T SNFC CNTRL – – yes
415-568 TPx SNFC CNTRL – yes yes
415-569 TPx MILLVALLEY – yes yes
415-570 AT&T SNFC JUNPR – yes yes
415-571 AT&T SNFC MT-EV – yes yes
415-572 T-Mobile SNFC CNTRL – yes yes
415-573 Bandwidth SNFC MT-EV – yes yes
415-574 T-Mobile SNFC MT-EV – yes yes
415-575 AT&T SNFC CNTRL – – yes
415-576 AT&T SNFC CNTRL – – yes
415-577 T-Mobile SNFC CNTRL – yes yes
415-578 Lumen SAN RAFAEL – yes yes
415-579 Bandwidth SNFC CNTRL 2014-08-14 yes yes
415-580 T-Mobile SNFC CNTRL 2012-04-12 yes yes
415-581 AT&T SNFC CNTRL – – yes
415-582 AT&T SNFC JUNPR – yes yes
415-583 AT&T SNFC CNTRL 2011-10-28 yes yes
415-584 AT&T SNFC JUNPR – – yes
415-585 AT&T SNFC JUNPR – – yes
415-586 AT&T SNFC JUNPR – – yes
415-587 AT&T SNFC JUNPR – – yes
415-588 33 WIRELESS INC. SNFC CNTRL – – yes
415-589 T-Mobile SNFC CNTRL 2012-11-23 yes yes
415-590 Verizon SNFC CNTRL 2012-03-22 yes yes
415-591 AT&T SNFC CNTRL – yes yes
415-592 Verizon SNFC MT-EV – yes yes
415-593 Verizon SNFC CNTRL – yes yes
415-594 Verizon SNFC JUNPR – yes yes
415-595 T-Mobile SNFC CNTRL – yes yes
415-596 T-Mobile SNFC CNTRL – yes yes
415-597 AT&T SNFC CNTRL – yes yes
415-598 Bandwidth NICASIO – yes yes
415-599 Onvoy NOVATO – yes yes
415-600 AT&T SNFC CNTRL – – yes
415-601 AT&T SNFC CNTRL – – yes
415-602 AT&T SNFC CNTRL – – yes
415-603 Verizon SNFC CNTRL 2012-03-23 yes yes
415-604 Bandwidth SNFC JUNPR 2015-01-23 yes yes
415-605 IP HORIZON LLC SNFC CNTRL 2020-11-25 yes yes
415-606 AT&T SNFC CNTRL – – yes
415-607 Spok SNFC CNTRL – – yes
415-608 AT&T SNFC CNTRL – – yes
415-609 AT&T SNFC CNTRL – – yes
415-610 T-Mobile SNFC CNTRL 2013-09-26 yes yes
415-612 T-Mobile IGNACIO 2002-09-19 yes yes
415-613 AT&T SNFC CNTRL – – yes
415-614 AT&T SNFC CNTRL – yes yes
415-615 AT&T SNFC CNTRL – yes yes
415-616 AT&T SNFC CNTRL – – yes
415-617 AT&T SNFC CNTRL – yes yes
415-618 AT&T SNFC CNTRL – yes yes
415-619 T-Mobile BELVEDERE 2015-08-03 yes yes
415-620 33 WIRELESS INC. SNFC CNTRL – – yes
415-621 AT&T SNFC CNTRL – yes yes
415-622 AT&T SNFC CNTRL – yes yes
415-623 AT&T SNFC CNTRL – yes yes
415-624 AT&T SNFC CNTRL – yes yes
415-625 Onvoy SNFC CNTRL – yes yes
415-626 AT&T SNFC CNTRL – – yes
415-627 AT&T SNFC CNTRL – yes yes
415-629 Onvoy SNFC MT-EV – yes yes
415-630 Verizon NICASIO – yes yes
415-631 NORTH COUNTY COMMUNICATION CORPORATION - CA POINTREYES – – yes
415-632 AT&T SNFC CNTRL 2005-02-22 yes yes
415-633 Verizon SNFC CNTRL – yes yes
415-634 Onvoy MILLVALLEY – yes yes
415-635 T-Mobile SNFC CNTRL 2013-01-29 yes yes
415-636 AT&T SNFC CNTRL – yes yes
415-637 T-Mobile SNFC CNTRL – yes yes
415-638 Verizon SNFC CNTRL 2013-06-28 yes yes
415-639 Onvoy INVERNESS – yes yes
415-640 AT&T SNFC CNTRL – – yes
415-641 AT&T SNFC CNTRL – – yes
415-642 AT&T SNFC CNTRL – – yes
415-643 AT&T SNFC CNTRL – – yes
415-644 AT&T SNFC CNTRL – yes yes
415-645 Verizon SNFC CNTRL – yes yes
415-646 AT&T SNFC CNTRL – yes yes
415-647 AT&T SNFC CNTRL – – yes
415-648 AT&T SNFC CNTRL – – yes
415-649 Lumen SNFC MT-EV – yes yes
415-650 T-Mobile SNFC MT-EV 2014-11-11 yes yes
415-651 Onvoy SNFC CNTRL – yes yes
415-652 Verizon SNFC CNTRL – yes yes
415-653 AT&T SNFC CNTRL 2013-08-08 yes yes
415-654 T-Mobile SNFC CNTRL 2012-10-09 yes yes
415-655 Onvoy SNFC CNTRL 2006-12-19 yes yes
415-656 AT&T SNFC JUNPR – yes yes
415-657 AT&T SNFC JUNPR – yes yes
415-658 AT&T SNFC CNTRL – yes yes
415-659 Verizon SNFC CNTRL 2001-05-11 yes yes
415-660 Verizon SNFC CNTRL 2013-10-01 yes yes
415-661 AT&T SNFC MT-EV – – yes
415-662 AT&T NICASIO – yes yes
415-663 AT&T POINTREYES – yes yes
415-664 AT&T SNFC MT-EV – – yes
415-665 AT&T SNFC MT-EV – – yes
415-666 AT&T SNFC MT-EV – yes yes
415-667 Verizon SNFC CNTRL – – yes
415-668 AT&T SNFC MT-EV – – yes
415-669 AT&T INVERNESS – yes yes
415-670 AT&T SNFC CNTRL – yes yes
415-671 AT&T SNFC CNTRL – yes yes
415-672 Verizon SNFC JUNPR – yes yes
415-673 AT&T SNFC CNTRL – – yes
415-674 AT&T SNFC CNTRL – – yes
415-675 AT&T SNFC CNTRL – yes yes
415-676 AT&T SNFC CNTRL – yes yes
415-677 AT&T SNFC CNTRL – – yes
415-678 AT&T SNFC CNTRL – yes yes
415-679 American Messaging SNFC CNTRL – – yes
415-680 Verizon SNFC MT-EV 2001-05-11 yes yes
415-681 AT&T SNFC MT-EV – – yes
415-682 AT&T SNFC MT-EV – yes yes
415-683 Verizon SNFC MT-EV – yes yes
415-684 Onvoy SNFC CNTRL – yes yes
415-685 Onvoy SNFC CNTRL 2008-03-21 yes yes
415-686 Verizon SAN RAFAEL 2002-08-21 yes yes
415-687 Peerless SAUSALITO 2012-06-29 yes yes
415-688 Onvoy SNFC MT-EV – yes yes
415-689 Verizon SNFC MT-EV 2010-03-05 yes yes
415-690 T-Mobile BELVEDERE 2002-09-19 yes yes
415-691 Lumen BELVEDERE – yes yes
415-692 AT&T SNFC CNTRL – yes yes
415-693 AT&T SNFC CNTRL – yes yes
415-694 AT&T SNFC CNTRL – yes yes
415-695 AT&T SNFC CNTRL – yes yes
415-696 Verizon SNFC CNTRL 2012-12-04 yes yes
415-697 AT&T SNFC CNTRL 2012-08-13 yes yes
415-698 Spok SNFC CNTRL – – yes
415-699 AT&T SNFC CNTRL – – yes
415-701 AT&T SNFC CNTRL – yes yes
415-702 IP HORIZON LLC SNFC MT-EV – yes yes
415-703 AT&T SNFC CNTRL – – yes
415-704 Twilio SNFC JUNPR – yes yes
415-705 AT&T SNFC CNTRL – yes yes
415-706 AT&T SNFC CNTRL – – yes
415-707 Onvoy SNFC CNTRL – yes yes
415-708 Spok SNFC CNTRL – – yes
415-709 Spok SNFC CNTRL – – yes
415-710 Verizon SNFC CNTRL – – yes
415-712 Bandwidth BELVEDERE 2013-05-14 yes yes
415-713 AT&T SNFC CNTRL – – yes
415-714 NUSO, LLC SNFC CNTRL 2024-11-01 yes yes
415-715 AT&T SNFC JUNPR – yes yes
415-716 T-Mobile SNFC CNTRL – yes yes
415-717 AT&T SAN RAFAEL – – yes
415-718 T-Mobile SNFC CNTRL 2024-02-14 yes yes
415-719 UTILITY TELECOM GROUP, LLC - CA SNFC CNTRL – – yes
415-720 Verizon SAN RAFAEL – – yes
415-721 AT&T SAN RAFAEL – – yes
415-722 Verizon SNFC CNTRL – – yes
415-723 Lumen POINTREYES – yes yes
415-724 T-Mobile SNFC MT-EV 2001-08-22 – yes
415-725 T-Mobile SNFC MT-EV – yes yes
415-726 T-Mobile SAN RAFAEL – yes yes
415-727 Onvoy INVERNESS – yes yes
415-728 AT&T SNFC CNTRL 2005-05-23 yes yes
415-729 Onvoy SAUSALITO – yes yes
415-730 Verizon SNFC CNTRL – – yes
415-731 AT&T SNFC MT-EV – – yes
415-732 AT&T SNFC CNTRL – yes yes
415-733 AT&T SNFC CNTRL – – yes
415-734 AT&T SNFC CNTRL – yes yes
415-735 Bandwidth SNFC CNTRL 2009-04-28 yes yes
415-736 AT&T SNFC CNTRL 2007-07-30 yes yes
415-737 Verizon CORTEMADRA – yes yes
415-738 Lumen SNFC CNTRL – yes yes
415-739 Spok SNFC CNTRL – – yes
415-740 T-Mobile SNFC JUNPR – yes yes
415-741 Bandwidth SNFC MT-EV 2012-09-24 yes yes
415-742 Comcast SNFC MT-EV 2006-10-06 yes yes
415-743 AT&T SNFC CNTRL – yes yes
415-744 AT&T SNFC CNTRL – yes yes
415-745 Verizon SNFC MT-EV 2010-07-12 yes yes
415-746 TPx SNFC CNTRL – yes yes
415-747 T-Mobile SAN RAFAEL – yes yes
415-748 T-Mobile SNFC CNTRL – yes yes
415-749 AT&T SNFC CNTRL – yes yes
415-750 AT&T SNFC MT-EV – – yes
415-751 AT&T SNFC MT-EV – – yes
415-752 AT&T SNFC MT-EV – – yes
415-753 AT&T SNFC MT-EV – yes yes
415-754 Bandwidth SAUSALITO – yes yes
415-755 TPx SAN RAFAEL – yes yes
415-756 T-Mobile SNFC CNTRL 2001-09-21 – yes
415-757 NUSO, LLC SNFC CNTRL 2012-11-06 yes yes
415-758 TPx CORTEMADRA – yes yes
415-759 AT&T SNFC MT-EV – – yes
415-760 T-Mobile SNFC CNTRL – yes yes
415-761 Peerless NOVATO 2013-03-09 yes yes
415-762 Lumen SNFC CNTRL – yes yes
415-763 AT&T IGNACIO – yes yes
415-764 AT&T SNFC CNTRL – yes yes
415-765 AT&T SNFC CNTRL – – yes
415-766 Bandwidth SNFC CNTRL 2010-07-12 yes yes
415-767 Allstream SNFC CNTRL 2013-03-25 yes yes
415-768 AT&T SNFC CNTRL – – yes
415-769 AT&T SNFC JUNPR 2014-04-04 yes yes
415-770 Bandwidth SNFC MT-EV 2014-02-28 yes yes
415-771 AT&T SNFC CNTRL – – yes
415-772 AT&T SNFC CNTRL – – yes
415-773 AT&T SNFC CNTRL – – yes
415-774 AT&T SNFC CNTRL – yes yes
415-775 AT&T SNFC CNTRL – – yes
415-776 AT&T SNFC CNTRL – – yes
415-777 AT&T SNFC CNTRL – – yes
415-778 AT&T SNFC CNTRL – – yes
415-779 AT&T STNSN-BLNS – yes yes
415-780 AT&T SNFC CNTRL 2013-11-19 yes yes
415-781 AT&T SNFC CNTRL – yes yes
415-782 AT&T SNFC CNTRL – – yes
415-783 Verizon SNFC CNTRL – – yes
415-784 UTILITY TELECOM GROUP, LLC - CA SAN RAFAEL – – yes
415-785 AT&T SAN RAFAEL – yes yes
415-786 T-Mobile SNFC CNTRL – yes yes
415-787 Lumen POINTREYES – yes yes
415-788 AT&T SNFC CNTRL – – yes
415-789 AT&T BELVEDERE – yes yes
415-790 American Messaging SNFC CNTRL – – yes
415-791 T-Mobile SNFC CNTRL 2024-01-11 yes yes
415-792 T-Mobile SNFC CNTRL 2014-08-21 yes yes
415-793 Verizon SNFC CNTRL – – yes
415-794 AT&T SNFC CNTRL – – yes
415-795 Lumen SNFC CNTRL 2010-09-29 yes yes
415-796 Verizon SNFC CNTRL – yes yes
415-797 T-Mobile BELVEDERE – yes yes
415-798 T-Mobile NOVATO – yes yes
415-799 Bandwidth SNFC JUNPR – yes yes
415-800 Bandwidth SNFC CNTRL – yes yes
415-801 Lumen SNFC CNTRL 2014-04-04 yes yes
415-802 AT&T SNFC CNTRL 2013-06-10 yes yes
415-803 33 WIRELESS INC. SNFC CNTRL – – yes
415-804 Spok SNFC CNTRL – – yes
415-805 Verizon SNFC CNTRL 2013-11-22 yes yes
415-806 AT&T SNFC CNTRL – – yes
415-807 UTILITY TELECOM GROUP, LLC - CA SNFC CNTRL – – yes
415-808 AT&T SNFC CNTRL – yes yes
415-809 Spok SNFC CNTRL – – yes
415-810 AT&T SNFC CNTRL – – yes
415-812 T-Mobile SNFC JUNPR 2001-11-28 yes yes
415-813 Lumen SNFC CNTRL 2010-11-23 yes yes
415-814 Onvoy SNFC CNTRL – yes yes
415-815 T-Mobile SNFC CNTRL 2010-11-26 yes yes
415-816 Verizon SNFC CNTRL – – yes
415-817 AT&T SNFC CNTRL – yes yes
415-818 AT&T SNFC JUNPR 2015-09-08 yes yes
415-819 AT&T SNFC CNTRL – – yes
415-820 TPx SNFC CNTRL – yes yes
415-821 AT&T SNFC CNTRL – yes yes
415-822 AT&T SNFC CNTRL – – yes
415-823 AT&T SNFC CNTRL – – yes
415-824 AT&T SNFC CNTRL – – yes
415-825 TPx SNFC JUNPR – yes yes
415-826 AT&T SNFC CNTRL – – yes
415-827 AT&T NOVATO – yes yes
415-828 Verizon SNFC CNTRL – – yes
415-829 TPx SNFC CNTRL – yes yes
415-830 Verizon SNFC CNTRL – yes yes
415-831 AT&T SNFC MT-EV – yes yes
415-832 AT&T SNFC CNTRL – yes yes
415-833 AT&T SNFC CNTRL – – yes
415-834 AT&T SNFC CNTRL – yes yes
415-835 AT&T SNFC CNTRL – yes yes
415-836 AT&T SNFC CNTRL – – yes
415-837 AT&T SNFC CNTRL – yes yes
415-838 American Messaging SAN RAFAEL – – yes
415-839 AT&T SNFC CNTRL – yes yes
415-840 Verizon SNFC JUNPR 2001-05-11 yes yes
415-841 AT&T SNFC JUNPR – yes yes
415-842 Verizon IGNACIO – yes yes
415-843 Verizon MILLVALLEY – yes yes
415-844 Verizon SNFC CNTRL – yes yes
415-845 T-Mobile SNFC CNTRL – yes yes
415-846 T-Mobile SNFC CNTRL – yes yes
415-847 Verizon SAN RAFAEL 2001-01-25 – yes
415-848 AT&T SNFC CNTRL – yes yes
415-849 Bandwidth CORTEMADRA 2014-08-11 yes yes
415-850 T-Mobile SNFC CNTRL – yes yes
415-851 Bandwidth SNFC CNTRL 2014-05-22 yes yes
415-852 Verizon SNFC CNTRL 2011-02-10 yes yes
415-853 Onvoy SNFC CNTRL – yes yes
415-854 Bandwidth SNFC CNTRL 2011-04-15 yes yes
415-855 Bandwidth SAUSALITO 2014-10-30 yes yes
415-856 AT&T SNFC CNTRL – yes yes
415-857 Bandwidth SNFC CNTRL 2011-04-28 yes yes
415-858 AT&T NOVATO 2011-04-22 yes yes
415-859 Verizon SNFC JUNPR – yes yes
415-860 AT&T SNFC CNTRL – – yes
415-861 AT&T SNFC CNTRL – yes yes
415-862 Verizon STNSN-BLNS – yes yes
415-863 AT&T SNFC CNTRL – – yes
415-864 AT&T SNFC CNTRL – yes yes
415-865 AT&T SNFC CNTRL – – yes
415-866 AT&T SNFC CNTRL 2011-05-11 yes yes
415-867 T-Mobile SNFC CNTRL 2001-10-18 – yes
415-868 AT&T STNSN-BLNS – yes yes
415-869 Lumen SNFC CNTRL – yes yes
415-870 Lumen SAN RAFAEL 2014-01-08 yes yes
415-871 T-Mobile SNFC CNTRL 2001-03-22 yes yes
415-872 Lumen SNFC CNTRL 2014-06-02 yes yes
415-873 Onvoy POINTREYES – yes yes
415-874 Lumen SNFC CNTRL – yes yes
415-875 AT&T SNFC CNTRL – yes yes
415-876 AT&T SNFC MT-EV – yes yes
415-877 T-Mobile MILLVALLEY 2001-10-18 yes yes
415-878 AT&T NOVATO – yes yes
415-879 T-Mobile MILLVALLEY 2001-09-21 yes yes
415-880 UTILITY TELECOM GROUP, LLC - CA SNFC JUNPR – yes yes
415-881 Verizon IGNACIO – yes yes
415-882 AT&T SNFC CNTRL – yes yes
415-883 AT&T IGNACIO – – yes
415-884 AT&T IGNACIO – – yes
415-885 AT&T SNFC CNTRL – yes yes
415-886 Verizon CORTEMADRA – yes yes
415-887 AT&T SAUSALITO – yes yes
415-888 Comcast MILLVALLEY – yes yes
415-889 AT&T BELVEDERE – yes yes
415-890 Verizon SNFC JUNPR – yes yes
415-891 Comcast CORTEMADRA – yes yes
415-892 Frontier NOVATO – – yes
415-893 Frontier NOVATO – – yes
415-894 AT&T SNFC CNTRL – yes yes
415-895 Verizon NOVATO – yes yes
415-896 AT&T SNFC CNTRL – yes yes
415-897 Frontier NOVATO – – yes
415-898 Frontier NOVATO – – yes
415-899 Frontier NOVATO – – yes
415-900 Onvoy BELVEDERE – yes yes
415-901 Verizon SNFC CNTRL – – yes
415-902 T-Mobile SNFC CNTRL – yes yes
415-903 Bandwidth POINTREYES 2015-06-09 yes yes
415-904 AT&T SNFC CNTRL – – yes
415-905 AT&T SNFC CNTRL – yes yes
415-906 Bandwidth SNFC CNTRL 2011-06-07 yes yes
415-907 Onvoy SNFC JUNPR 2021-07-01 yes yes
415-908 AT&T SNFC CNTRL – yes yes
415-909 AT&T SNFC JUNPR 2015-09-11 yes yes
415-910 T-Mobile BELVEDERE 2015-05-01 yes yes
415-912 AT&T SNFC CNTRL – yes yes
415-913 Verizon SNFC CNTRL – yes yes
415-914 Lumen SNFC CNTRL 2015-05-29 yes yes
415-915 Windstream SNFC CNTRL 2014-07-25 yes yes
415-916 Verizon SNFC CNTRL 2015-09-11 yes yes
415-917 AT&T SNFC JUNPR 2014-10-16 yes yes
415-918 Lumen SNFC CNTRL 2015-07-10 yes yes
415-919 AT&T SNFC CNTRL 2015-09-16 yes yes
415-920 AT&T SNFC CNTRL – yes yes
415-921 AT&T SNFC CNTRL – yes yes
415-922 AT&T SNFC CNTRL – – yes
415-923 AT&T SNFC CNTRL – yes yes
415-924 AT&T CORTEMADRA – – yes
415-925 AT&T SAN RAFAEL – – yes
415-926 Verizon SNFC CNTRL 2011-05-26 yes yes
415-927 AT&T CORTEMADRA – – yes
415-928 AT&T SNFC CNTRL – yes yes
415-929 AT&T SNFC CNTRL – – yes
415-930 Verizon SNFC CNTRL 2013-12-13 yes yes
415-931 AT&T SNFC CNTRL – – yes
415-932 AT&T SNFC CNTRL – yes yes
415-933 AT&T SNFC MT-EV – yes yes
415-934 AT&T SNFC CNTRL – yes yes
415-935 Bandwidth SNFC CNTRL 2008-05-13 yes yes
415-936 AT&T CORTEMADRA 2014-08-15 yes yes
415-937 TPx BELVEDERE – yes yes
415-938 Bandwidth POINTREYES – yes yes
415-939 AT&T SNFC CNTRL – – yes
415-940 Verizon SNFC CNTRL 2011-05-11 yes yes
415-941 Lumen SNFC MT-EV 2014-04-07 yes yes
415-942 Bandwidth SAUSALITO 2014-06-23 yes yes
415-943 Bandwidth STNSN-BLNS 2014-08-11 yes yes
415-944 Lumen SAUSALITO – yes yes
415-945 AT&T CORTEMADRA – – yes
415-946 Verizon SNFC CNTRL – yes yes
415-947 AT&T SNFC CNTRL – yes yes
415-948 T-Mobile SNFC CNTRL – yes yes
415-949 Bandwidth NICASIO 2014-09-18 yes yes
415-951 AT&T SNFC CNTRL – yes yes
415-952 Bandwidth STNSN-BLNS – yes yes
415-953 AT&T SNFC CNTRL – – yes
415-954 AT&T SNFC CNTRL – yes yes
415-955 AT&T SNFC CNTRL – yes yes
415-956 AT&T SNFC CNTRL – – yes
415-957 AT&T SNFC CNTRL – – yes
415-960 T-Mobile BELVEDERE 2014-07-21 yes yes
415-961 Verizon SNFC CNTRL 2014-04-08 yes yes
415-962 Verizon SNFC CNTRL – yes yes
415-963 Verizon SNFC CNTRL – yes yes
415-964 Bandwidth SNFC MT-EV 2014-08-08 yes yes
415-965 Onvoy STNSN-BLNS – yes yes
415-966 T-Mobile BELVEDERE 2014-10-20 yes yes
415-967 Bandwidth SNFC CNTRL 2011-05-10 yes yes
415-968 Lumen MILLVALLEY 2005-12-28 yes yes
415-969 Lumen SNFC CNTRL 2014-06-02 yes yes
415-970 AT&T SNFC CNTRL – yes yes
415-971 Verizon SNFC CNTRL – – yes
415-972 AT&T SNFC CNTRL – yes yes
415-973 AT&T SNFC CNTRL – – yes
415-974 AT&T SNFC CNTRL – – yes
415-975 AT&T SNFC CNTRL – yes yes
415-976 NORTH COUNTY COMMUNICATION CORPORATION - CA SNFC CNTRL 2011-06-08 – yes
415-977 AT&T SNFC CNTRL – – yes
415-978 AT&T SNFC CNTRL – yes yes
415-979 AT&T SNFC CNTRL – – yes
415-980 T-Mobile SNFC JUNPR 2014-09-02 yes yes
415-981 AT&T SNFC CNTRL – yes yes
415-982 AT&T SNFC CNTRL – yes yes
415-983 AT&T SNFC CNTRL – yes yes
415-984 AT&T SNFC CNTRL – – yes
415-985 TPx NOVATO 2014-04-28 yes yes
415-986 AT&T SNFC CNTRL – yes yes
415-987 AT&T SNFC CNTRL – – yes
415-988 Onvoy SNFC JUNPR – yes yes
415-989 AT&T SNFC CNTRL – – yes
415-990 AT&T SNFC CNTRL – – yes
415-991 Lumen SAN RAFAEL 2014-07-07 yes yes
415-992 T-Mobile SNFC CNTRL – yes yes
415-993 Bandwidth SNFC JUNPR 2014-09-03 yes yes
415-994 AT&T SNFC CNTRL 2001-06-25 – yes
415-995 AT&T SNFC CNTRL – – yes
415-996 Bandwidth IGNACIO 2014-09-18 yes yes
415-997 Lumen NICASIO – yes yes
415-998 AT&T SNFC CNTRL – yes yes
415-999 AT&T SNFC CNTRL – – yes

Frequently asked

How many prefixes does area code 415 have?

785 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,850 thousand-number ranges across 14 rate centers.

What do the first three digits after 415 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 415 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 415 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 495 of 415'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.

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