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

Area code 945 prefixes

300 of the 786 possible NXX blocks are assigned in area code 945 (38.2% of capacity), spread across 41 rate centers and 38 holders. The largest holders are ONVOY, LLC - TX (54 blocks, 18.0%), T-MOBILE USA, INC. (53 blocks, 17.7%), NEW CINGULAR WIRELESS PCS, LLC - IL (43 blocks, 14.3%). Grouped by brand, AT&T accounts for 56 blocks; brand-attributable holders cover 74% 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 2020-11-17 to 2026-10-28, with 61 blocks handed out in 2022 alone. 299 blocks (100%) 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. 9 assigned blocks (443, 448, 449, 450, 451, 452…) are not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 220 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

300 assigned blocks of 786
41 rate centers
38 holders of record
100% in thousands-block pooling

Largest holders in 945

Holder of record, as NANPA names itBrandBlocksShare
ONVOY, LLC - TX Onvoy 54 18%
T-MOBILE USA, INC. T-Mobile 53 17.7%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 43 14.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 27 9%
FRACTEL, LLC – 20 6.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - TX AT&T 12 4%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 12 4%
TON80 COMMUNICATIONS, LLC – 11 3.7%
USFON, INC. - TX – 10 3.3%
COMMIO, LLC – 9 3%
ONVOY SPECTRUM, LLC Charter 8 2.7%
BOOST SUBSCRIBERCO L.L.C. Dish 5 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 300 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
945-200 FRACTEL, LLC ENNIS 2021-01-11 yes yes
945-201 Verizon GRANDPRARI 2021-06-18 yes yes
945-202 Onvoy NEVADA 2021-06-21 yes yes
945-203 Onvoy SCURRY 2021-06-21 yes yes
945-204 AT&T PROSPER 2021-04-02 yes yes
945-205 Bandwidth BLUE RIDGE 2021-06-30 yes yes
945-206 Onvoy FARMERSVL 2021-07-20 yes yes
945-207 Onvoy PROSPER 2021-07-27 yes yes
945-208 T-Mobile GRANDPRARI 2021-08-11 yes yes
945-209 T-Mobile GRANDPRARI 2021-08-12 yes yes
945-210 Verizon GRANDPRARI 2021-08-13 yes yes
945-212 Onvoy CEDAR HILL 2021-07-06 yes yes
945-213 AT&T FRISCO 2021-08-17 yes yes
945-214 AT&T GRANDPRARI 2021-08-17 yes yes
945-215 Onvoy ALLEN 2021-08-24 yes yes
945-216 T-Mobile FRISCO 2021-08-24 yes yes
945-217 T-Mobile FRISCO 2021-08-24 yes yes
945-218 LEAP TELECOM, LLC DALLAS 2021-08-31 yes yes
945-219 Onvoy DALLAS 2021-09-14 yes yes
945-220 AT&T MCKINNEY 2021-09-13 yes yes
945-221 AT&T DALLAS – yes yes
945-222 USFON, INC. - TX CRANDALL 2020-11-19 yes yes
945-223 AT&T CARROLLTON 2021-09-24 yes yes
945-224 AT&T MCKINNEY 2021-09-29 yes yes
945-225 Verizon GRANDPRARI 2021-09-30 yes yes
945-226 AT&T RED OAK 2021-10-19 yes yes
945-227 AT&T PLANO 2021-10-26 yes yes
945-228 Bandwidth CEDAR HILL 2021-10-28 yes yes
945-229 CALLWORKS CORPORATION DALLAS 2021-11-01 yes yes
945-230 AT&T GRANDPRARI 2021-11-02 yes yes
945-231 Bandwidth SEAGOVILLE 2021-11-03 yes yes
945-232 T-Mobile GRANDPRARI 2021-11-05 yes yes
945-233 T-Mobile GRANDPRARI 2021-11-05 yes yes
945-234 FRACTEL, LLC MCKINNEY 2021-01-11 yes yes
945-235 Dish DALLAS 2021-11-11 yes yes
945-236 T-Mobile ROCKWALL 2021-11-17 yes yes
945-237 Dish MCKINNEY 2021-12-22 yes yes
945-238 Dish TERRELL 2021-12-22 yes yes
945-239 AT&T GRANDPRARI 2022-01-17 yes yes
945-240 T-Mobile MIDLOTHIAN 2022-01-19 yes yes
945-241 T-Mobile FRISCO 2022-01-19 yes yes
945-242 Bandwidth FORNEY 2022-01-24 yes yes
945-243 T-Mobile GRANDPRARI 2022-01-26 yes yes
945-244 T-Mobile GRANDPRARI 2022-01-26 yes yes
945-245 Onvoy MAYPEARL 2021-01-18 yes yes
945-246 T-Mobile GRANDPRARI 2022-01-26 yes yes
945-247 T-Mobile GRANDPRARI 2022-01-26 yes yes
945-248 Verizon MCKINNEY 2022-02-17 yes yes
945-249 AT&T FRISCO 2022-03-18 yes yes
945-250 AT&T LEWISVILLE 2022-03-18 yes yes
945-251 AT&T GRANDPRARI 2022-08-02 yes yes
945-252 AT&T PLANO 2022-04-08 yes yes
945-253 AT&T PLANO 2022-04-08 yes yes
945-254 Charter PLANO 2022-05-04 yes yes
945-255 Charter ANNA 2021-06-10 yes yes
945-256 TPx ALLEN 2022-05-24 yes yes
945-257 T-Mobile FRISCO 2022-05-13 yes yes
945-258 TPx DALLAS 2022-05-24 yes yes
945-259 Verizon WAXAHACHIE 2022-05-25 yes yes
945-260 Bandwidth FRISCO 2022-07-01 yes yes
945-261 Bandwidth GRANDPRARI 2022-07-01 yes yes
945-262 TRUSTID, INC. DALLAS 2022-07-05 yes yes
945-263 Dish BARDWELL 2022-08-05 yes yes
945-264 T-Mobile GRANDPRARI 2022-08-09 yes yes
945-265 T-Mobile GRANDPRARI 2022-08-09 yes yes
945-266 T-Mobile GRANDPRARI 2022-08-09 yes yes
945-267 T-Mobile FRISCO 2022-08-25 yes yes
945-268 T-Mobile FRISCO 2022-08-25 yes yes
945-269 Verizon GRANDPRARI 2022-08-26 yes yes
945-270 Bandwidth LEWISVILLE 2022-09-16 yes yes
945-271 Bandwidth WAXAHACHIE 2022-10-05 yes yes
945-272 T-Mobile GRANDPRARI 2022-10-06 yes yes
945-273 T-Mobile GRANDPRARI 2022-10-06 yes yes
945-274 T-Mobile MCKINNEY 2022-10-06 yes yes
945-275 Verizon GRANDPRARI 2022-10-12 yes yes
945-276 Verizon MCKINNEY 2022-10-12 yes yes
945-277 HADLO TECHNOLOGIES, LLC DALLAS 2023-05-05 yes yes
945-278 Verizon FRISCO 2022-10-24 yes yes
945-279 Comcast DALLAS 2022-11-02 yes yes
945-280 AT&T MCKINNEY 2022-11-08 yes yes
945-281 Onvoy JOSEPHINE 2022-11-16 yes yes
945-282 Windstream DALLAS 2022-11-23 yes yes
945-283 Verizon GRANDPRARI 2022-12-15 yes yes
945-284 AT&T PLANO 2023-01-03 yes yes
945-285 Twilio KAUFMAN 2023-01-11 yes yes
945-286 AT&T GRANDPRARI 2023-01-18 yes yes
945-287 Bandwidth PLANO 2023-01-20 yes yes
945-288 Bandwidth IRVING 2023-01-20 yes yes
945-289 AT&T FRISCO 2023-01-30 yes yes
945-290 AT&T GRANDPRARI 2023-02-28 yes yes
945-291 T-Mobile FRISCO – yes yes
945-292 FIVE9, INC. DALLAS 2023-03-16 yes yes
945-293 FIVE9, INC. DALLAS 2023-05-16 yes yes
945-294 Onvoy PLANO 2023-06-05 yes yes
945-295 Onvoy LEWISVILLE 2023-06-06 yes yes
945-296 T-Mobile FORNEY 2023-06-20 yes yes
945-297 Onvoy FRISCO 2023-06-21 yes yes
945-298 Onvoy CARROLLTON 2023-06-14 yes yes
945-299 Onvoy MIDLOTHIAN 2023-07-13 yes yes
945-300 USFON, INC. - TX LEWISVILLE 2020-11-19 yes yes
945-301 Verizon GRANDPRARI 2023-07-26 yes yes
945-302 Onvoy FERRIS 2023-07-28 yes yes
945-303 EON TELECOM, INC. DALLAS 2023-08-29 yes yes
945-304 Verizon MCKINNEY 2023-09-11 yes yes
945-305 T-Mobile ROCKWALL 2023-09-19 yes yes
945-306 AT&T GRANDPRARI 2023-09-28 yes yes
945-307 Onvoy MCKINNEY 2023-09-28 yes yes
945-308 T-Mobile FRISCO 2023-10-25 yes yes
945-309 Vonage NEVADA 2023-10-27 yes yes
945-310 T-Mobile MCKINNEY 2023-11-07 yes yes
945-312 Verizon GRANDPRARI 2023-12-01 yes yes
945-313 COMMIO, LLC DALLAS 2023-12-15 yes yes
945-314 COMMIO, LLC IRVING 2023-12-18 yes yes
945-315 COMMIO, LLC MCKINNEY 2023-12-18 yes yes
945-316 COMMIO, LLC ANNA 2023-12-20 yes yes
945-317 COMMIO, LLC VENUS 2023-12-20 yes yes
945-318 COMMIO, LLC DE SOTO 2023-12-20 yes yes
945-319 COMMIO, LLC FRISCO 2023-12-21 yes yes
945-320 COMMIO, LLC PLANO 2023-12-21 yes yes
945-321 Verizon WAXAHACHIE 2023-12-21 yes yes
945-322 TON80 COMMUNICATIONS, LLC DE SOTO 2022-01-07 yes yes
945-323 AT&T GRANDPRARI 2024-01-05 yes yes
945-324 Verizon GRANDPRARI 2024-01-18 yes yes
945-325 Onvoy PLANO 2024-01-24 yes yes
945-326 Onvoy MCKINNEY 2024-01-24 yes yes
945-327 Onvoy GRANDPRARI 2024-01-24 yes yes
945-328 Onvoy GRANDPRARI 2023-05-25 yes yes
945-329 Charter WILMER 2024-02-06 yes yes
945-330 Onvoy FORNEY 2024-02-23 yes yes
945-331 Onvoy ROYSE CITY 2024-02-23 yes yes
945-332 Onvoy RED OAK 2024-02-23 yes yes
945-333 USFON, INC. - TX MCKINNEY 2020-11-19 yes yes
945-334 Onvoy LEWISVILLE 2024-02-23 yes yes
945-335 Onvoy IRVING 2024-02-23 yes yes
945-336 FRACTEL, LLC GRANDPRARI 2020-11-27 yes yes
945-337 Onvoy DALLAS 2024-03-26 yes yes
945-338 T-Mobile FRISCO 2024-04-19 yes yes
945-339 AT&T FRISCO 2024-04-04 yes yes
945-340 AT&T GRANDPRARI 2024-06-13 yes yes
945-341 Verizon GRANDPRARI 2024-05-06 yes yes
945-342 T-Mobile IRVING 2024-07-26 yes yes
945-343 Verizon WAXAHACHIE 2024-08-06 yes yes
945-344 AT&T PLANO 2024-08-14 yes yes
945-345 FRACTEL, LLC MIDLOTHIAN 2021-01-11 yes yes
945-346 Verizon GRANDPRARI 2024-08-14 yes yes
945-347 T-Mobile DE SOTO 2024-08-15 yes yes
945-348 FRACTEL, LLC FRISCO 2020-11-27 yes yes
945-349 Verizon GRANDPRARI 2024-09-06 yes yes
945-350 WIRETAP TELECOM, LLC. DALLAS 2024-09-18 yes yes
945-351 Bandwidth DALLAS 2024-09-05 yes yes
945-352 Bandwidth GRANDPRARI 2024-09-19 yes yes
945-353 AT&T GRANDPRARI 2024-10-31 yes yes
945-354 AT&T GRANDPRARI 2024-11-08 yes yes
945-355 Charter BRISTOL 2021-06-10 yes yes
945-356 FRACTEL, LLC DLFTWTARPT 2020-11-27 yes yes
945-357 T-Mobile FRISCO 2024-09-11 yes yes
945-358 T-Mobile IRVING 2024-11-19 yes yes
945-359 AT&T FORNEY 2024-12-02 yes yes
945-360 T-Mobile IRVING 2024-12-03 yes yes
945-361 AT&T PLANO 2024-12-27 yes yes
945-362 TON80 COMMUNICATIONS, LLC CELINA 2022-02-18 yes yes
945-363 Onvoy CEDAR HILL 2025-01-09 yes yes
945-364 Verizon GRANDPRARI 2025-01-10 yes yes
945-365 AT&T GRANDPRARI 2025-01-13 yes yes
945-366 AT&T GRANDPRARI 2025-01-13 yes yes
945-367 T-Mobile IRVING 2025-01-15 yes yes
945-368 Charter ALLEN 2025-01-29 yes yes
945-369 Charter PLANO 2025-01-29 yes yes
945-370 AT&T FRISCO 2025-02-10 yes yes
945-371 T-Mobile IRVING 2025-02-10 yes yes
945-372 Verizon GRANDPRARI 2025-02-12 yes yes
945-373 IP HORIZON LLC COMBINE 2025-02-26 yes yes
945-374 IP HORIZON LLC CRANDALL 2025-02-26 yes yes
945-375 IP HORIZON LLC FORNEY 2025-02-26 yes yes
945-376 IP HORIZON LLC ROYSE CITY 2025-02-26 yes yes
945-377 IP HORIZON LLC WAXAHACHIE 2025-02-26 yes yes
945-378 T-Mobile IRVING 2025-03-03 yes yes
945-379 AT&T MCKINNEY 2025-03-06 yes yes
945-380 AT&T PLANO 2026-02-17 yes yes
945-381 Onvoy MCKINNEY 2025-04-16 yes yes
945-382 T-Mobile LEWISVILLE 2025-05-12 yes yes
945-383 Verizon GRANDPRARI 2025-05-29 yes yes
945-384 AT&T GRANDPRARI 2025-06-06 yes yes
945-385 AT&T PLANO 2025-06-12 yes yes
945-386 FRACTEL, LLC FORNEY 2021-03-02 yes yes
945-387 T-Mobile PLANO 2025-06-17 yes yes
945-388 Verizon GRANDPRARI 2025-06-25 yes yes
945-389 Onvoy DE SOTO 2025-06-25 yes yes
945-390 Onvoy MIDLOTHIAN 2025-06-25 yes yes
945-391 T-Mobile DALLAS 2025-07-02 yes yes
945-392 T-Mobile DALLAS 2025-07-14 yes yes
945-393 WAVENATION, LLC DALLAS 2025-07-17 yes yes
945-394 AT&T DALLAS 2025-08-05 yes yes
945-395 T-Mobile LEWISVILLE 2025-08-06 yes yes
945-396 T-Mobile DALLAS 2025-08-07 yes yes
945-397 AT&T GRANDPRARI 2025-08-07 yes yes
945-398 T-Mobile DALLAS 2025-08-20 yes yes
945-399 T-Mobile DALLAS 2025-08-26 yes yes
945-400 USFON, INC. - TX FRISCO 2020-11-19 yes yes
945-401 AT&T MCKINNEY 2025-09-04 yes yes
945-402 T-Mobile DALLAS 2025-09-10 yes yes
945-403 T-Mobile DALLAS 2025-09-16 yes yes
945-404 Onvoy CARROLLTON 2025-09-22 yes yes
945-405 Onvoy ITALY 2023-01-11 yes yes
945-406 Onvoy RED OAK 2025-09-22 yes yes
945-407 T-Mobile DALLAS 2025-09-29 yes yes
945-408 T-Mobile DALLAS 2025-10-07 yes yes
945-409 T-Mobile DALLAS 2025-10-15 yes yes
945-410 CSC WIRELESS, LLC DALLAS 2025-10-21 yes yes
945-412 AT&T GRANDPRARI 2025-10-30 yes yes
945-416 AT&T LEWISVILLE 2025-11-19 yes yes
945-418 Onvoy GRANDPRARI 2025-11-20 yes yes
945-419 Verizon MCKINNEY 2025-12-03 yes yes
945-421 T-Mobile DALLAS 2025-12-12 yes yes
945-422 Onvoy ROCKWALL 2025-12-18 yes yes
945-423 Verizon GRANDPRARI 2025-12-31 yes yes
945-424 Verizon GRANDPRARI 2026-01-07 yes yes
945-425 Onvoy LEWISVILLE 2023-01-11 yes yes
945-426 TON80 COMMUNICATIONS, LLC PLANO 2022-01-10 yes yes
945-427 AT&T GRANDPRARI 2026-02-17 yes yes
945-428 Onvoy PLANO 2026-02-18 yes yes
945-429 Onvoy SEAGOVILLE 2026-02-18 yes yes
945-430 AT&T FRISCO 2026-04-06 yes yes
945-431 AT&T FRISCO 2026-04-06 yes yes
945-432 Dish GRANDPRARI 2026-04-09 yes yes
945-433 Onvoy MCKINNEY 2026-04-14 yes yes
945-434 AT&T MCKINNEY 2026-04-15 yes yes
945-435 TON80 COMMUNICATIONS, LLC ENNIS 2022-01-10 yes yes
945-436 AT&T GRANDPRARI 2026-05-15 yes yes
945-437 AT&T PLANO 2026-05-15 yes yes
945-438 AT&T PLANO 2026-05-15 yes yes
945-439 Onvoy FRISCO 2026-05-20 yes yes
945-440 T-Mobile PLANO 2026-05-19 yes yes
945-441 Onvoy GRANDPRARI 2026-05-20 yes yes
945-442 AT&T MCKINNEY 2026-06-25 yes yes
945-443 Onvoy LEWISVILLE 2026-08-19 yes no
945-444 USFON, INC. - TX GRANDPRARI 2020-11-19 yes yes
945-445 Onvoy PRINCETON 2023-01-13 yes yes
945-446 TON80 COMMUNICATIONS, LLC CARROLLTON 2022-02-09 yes yes
945-447 Onvoy PLANO 2026-08-19 yes yes
945-448 Onvoy TERRELL 2026-09-09 yes no
945-449 AT&T GRANDPRARI 2026-09-16 yes no
945-450 T-Mobile IRVING 2026-06-16 yes no
945-451 Verizon GRANDPRARI 2026-09-23 yes no
945-452 Onvoy PLANO 2026-10-20 yes no
945-453 Onvoy FRISCO 2026-10-28 yes no
945-455 SKYE TELECOM LLC DBA SKYETEL IRVING 2021-09-07 yes yes
945-465 FRACTEL, LLC COMBINE 2020-11-27 yes yes
945-468 SKYE TELECOM LLC DBA SKYETEL DALLAS 2021-05-19 yes yes
945-495 Onvoy PROSPER 2022-03-03 yes yes
945-500 USFON, INC. - TX CARROLLTON 2020-11-19 yes yes
945-523 Onvoy CARROLLTON 2023-01-11 yes yes
945-527 TON80 COMMUNICATIONS, LLC MCKINNEY 2022-01-10 yes yes
945-529 FRACTEL, LLC VENUS 2020-11-27 yes yes
945-536 TON80 COMMUNICATIONS, LLC GRANDPRARI 2022-01-10 yes yes
945-542 TON80 COMMUNICATIONS, LLC WAXAHACHIE 2021-04-06 yes yes
945-544 Onvoy FRISCO 2022-11-16 yes yes
945-545 BARR TELL USA, LLC DALLAS 2024-07-02 yes yes
945-546 TON80 COMMUNICATIONS, LLC ROCKWALL 2022-01-10 yes yes
945-587 AHOI LLC DALLAS 2025-11-20 yes yes
945-599 TON80 COMMUNICATIONS, LLC TERRELL 2022-01-26 yes yes
945-600 FRACTEL, LLC CELINA 2020-11-27 yes yes
945-666 USFON, INC. - TX PALMER 2020-11-19 yes yes
945-667 FRACTEL, LLC ROCKWALL 2022-02-01 yes yes
945-677 AT&T PROSPER 2023-01-26 yes yes
945-678 AT&T MCKINNEY 2023-01-26 yes yes
945-699 FRACTEL, LLC MCKINNEY 2021-05-07 yes yes
945-713 Charter FRISCO 2024-02-06 yes yes
945-732 FRACTEL, LLC FRISCO 2022-02-01 yes yes
945-745 Onvoy ROYSE CITY 2021-01-22 yes yes
945-758 FRACTEL, LLC ALLEN 2021-03-02 yes yes
945-766 FRACTEL, LLC TERRELL 2021-03-02 yes yes
945-777 TERRA NOVA TELECOM INC. ANNA 2020-11-17 yes yes
945-786 FRACTEL, LLC ENNIS 2022-01-27 yes yes
945-788 FRACTEL, LLC WILMER 2021-05-07 yes yes
945-800 USFON, INC. - TX PLANO 2020-11-19 yes yes
945-810 Onvoy IRVING 2021-03-18 yes yes
945-837 TON80 COMMUNICATIONS, LLC DLFTWTARPT 2022-01-07 yes yes
945-842 FRACTEL, LLC DLFTWTARPT 2022-01-27 yes yes
945-867 COMMIO, LLC PLANO 2022-01-25 yes yes
945-880 8x8 DALLAS 2026-09-16 yes no
945-888 TERRA NOVA TELECOM INC. BLUE RIDGE 2020-11-17 yes yes
945-899 FRACTEL, LLC GRANDPRARI 2021-05-07 yes yes
945-900 USFON, INC. - TX WAXAHACHIE 2020-11-19 yes yes
945-910 Onvoy DALLAS 2020-12-08 yes yes
945-941 WIDE VOICE, LLC - TX DALLAS 2025-06-25 yes yes
945-942 Onvoy PLANO 2022-11-15 yes yes
945-945 USFON, INC. - TX DALLAS 2023-01-25 yes yes
945-946 FRACTEL, LLC TERRELL 2022-01-27 yes yes
945-949 HD CARRIER LLC DALLAS 2025-06-23 yes yes
945-954 VESTED NETWORKS, LLC DALLAS 2024-12-05 yes yes
945-985 AT&T GRANDPRARI 2024-09-11 yes yes
945-992 AT&T DLFTWTARPT 2026-08-26 yes no
945-993 AT&T WAXAHACHIE 2026-07-29 yes yes
945-994 Verizon GRANDPRARI 2024-10-31 yes yes
945-995 SHELCOMM GRANDPRARI 2024-10-22 – yes
945-996 EON TELECOM, INC. CELINA 2024-10-07 yes yes
945-997 Charter PLANO 2024-09-24 yes yes
945-998 T-Mobile IRVING 2024-09-24 yes yes
945-999 TERRA NOVA TELECOM INC. BRISTOL 2020-11-17 yes yes

Frequently asked

How many prefixes does area code 945 have?

300 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 3,000 thousand-number ranges across 41 rate centers.

What do the first three digits after 945 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 945 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 945 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 299 of 945'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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