Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 442 prefixes
356 of the 786 possible NXX blocks are assigned in area code 442 (45.3% of capacity), spread across 78 rate centers and 44 holders. The largest holders are NEW CINGULAR WIRELESS PCS, LLC (57 blocks, 16.0%), T-MOBILE USA, INC. (54 blocks, 15.2%), FRACTEL, LLC (51 blocks, 14.3%). Grouped by brand, T-Mobile accounts for 65 blocks; brand-attributable holders cover 75% 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 2011-06-29 to 2026-09-09, with 57 blocks handed out in 2020 alone. 354 blocks (99%) 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. 3 assigned blocks (502, 503, 504) are not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 234 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
356 assigned blocks of 786
78 rate centers
44 holders of record
99% in thousands-block pooling
Largest holders in 442
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 57 | 16% |
| T-MOBILE USA, INC. | T-Mobile | 54 | 15.2% |
| FRACTEL, LLC | – | 51 | 14.3% |
| ONVOY, LLC - CA | Onvoy | 45 | 12.6% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 26 | 7.3% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 17 | 4.8% |
| ONVOY SPECTRUM, LLC | Charter | 8 | 2.2% |
| METROPCS, INC. | T-Mobile | 7 | 2% |
| TON80 COMMUNICATIONS, LLC | – | 7 | 2% |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | Peerless | 6 | 1.7% |
| COMMIO, LLC | – | 6 | 1.7% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 5 | 1.4% |
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.
VICTORVL 29PALM SPG 27INDIO 24ESCONDIDO 22EL CENTRO 21BRAWLEY 19VTVL HSPR 14VISTA 12PALMDESERT 12OCSD OCSD 11OCSD CRLS 11BARSTOW 8CALEXICO 7CALIFORNCY 7VTVL APVY 7ENCINITAS 6SAN MARCOS 6FALLBROOK 5VTVL ADLN 5VALLEY CTR 4DSERTHTSPG 4YUCCA VLY 3CALIPATRIA 3TWNTYNPLMS 3LKISABELLA 3LENWOOD 3INYOKERN 3OCSD PDTN 3RIDGECREST 3HOMESTDVLY 3
All 356 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 |
|---|---|---|---|---|---|
| 442-200 | Onvoy | CALEXICO | – | yes | yes |
| 442-201 | Onvoy | LEE VINING | 2016-02-24 | yes | yes |
| 442-202 | T-Mobile | BRAWLEY | 2016-03-11 | yes | yes |
| 442-203 | Onvoy | BRIDGEPORT | 2016-03-21 | yes | yes |
| 442-204 | AT&T | VISTA | 2016-04-12 | yes | yes |
| 442-205 | T-Mobile | YUCCA VLY | 2016-05-10 | yes | yes |
| 442-206 | Onvoy | IMPERIAL | 2016-05-11 | yes | yes |
| 442-207 | Bandwidth | FALLBROOK | 2016-08-12 | yes | yes |
| 442-208 | Bandwidth | CALIPATRIA | 2016-08-22 | yes | yes |
| 442-210 | AT&T | BIG PINE | 2016-10-11 | yes | yes |
| 442-212 | Telnyx | PALM SPG | 2016-12-02 | yes | yes |
| 442-214 | Verizon | TWNTYNPLMS | – | yes | yes |
| 442-215 | AT&T | INDIO | 2016-12-13 | yes | yes |
| 442-216 | T-Mobile | VISTA | 2016-12-13 | yes | yes |
| 442-217 | AT&T | VALLEY CTR | 2017-03-24 | yes | yes |
| 442-218 | T-Mobile | LKISABELLA | 2017-03-29 | yes | yes |
| 442-219 | T-Mobile | VICTORVL | 2017-06-08 | yes | yes |
| 442-220 | INTEGRATED PATH COMMUNICATIONS, LLC - CA | MT PASS | – | yes | yes |
| 442-221 | Bandwidth | BENTON | 2013-08-13 | yes | yes |
| 442-222 | Onvoy | OCSD OCSD | – | yes | yes |
| 442-223 | Peerless | NEWBERRY | 2012-06-29 | yes | yes |
| 442-224 | Charter | VISTA | 2013-03-28 | yes | yes |
| 442-225 | T-Mobile | EL CENTRO | – | yes | yes |
| 442-226 | T-Mobile | BRAWLEY | 2013-07-12 | yes | yes |
| 442-227 | HD CARRIER LLC | PALMDESERT | – | yes | yes |
| 442-228 | CSC VOICE, LLC | BISHOP | 2013-11-04 | yes | yes |
| 442-229 | Bandwidth | VICTORVL | 2013-11-19 | yes | yes |
| 442-230 | T-Mobile | BRAWLEY | 2016-10-10 | yes | yes |
| 442-231 | Charter | EL CENTRO | – | yes | yes |
| 442-232 | Lumen | OCSD CRLS | 2014-04-07 | yes | yes |
| 442-233 | Bandwidth | LENWOOD | 2014-07-07 | yes | yes |
| 442-234 | Peerless | PALM SPG | 2014-04-11 | yes | yes |
| 442-235 | Verizon | BARSTOW | 2014-06-10 | yes | yes |
| 442-236 | AT&T | EL CENTRO | 2014-03-24 | yes | yes |
| 442-237 | T-Mobile | ESCONDIDO | 2014-07-07 | yes | yes |
| 442-238 | T-Mobile | EL CENTRO | – | yes | yes |
| 442-239 | INTEGRATED PATH COMMUNICATIONS, LLC - CA | DEATH VLY | – | yes | yes |
| 442-240 | FIVE9, INC. | RAMONA | 2023-12-04 | yes | yes |
| 442-241 | Verizon | INDIO | – | yes | yes |
| 442-242 | T-Mobile | VICTORVL | 2011-06-29 | yes | yes |
| 442-243 | Verizon | VICTORVL | 2014-06-24 | yes | yes |
| 442-244 | Charter | OCSD CRLS | 2013-03-25 | yes | yes |
| 442-245 | Verizon | VISTA | 2014-07-28 | yes | yes |
| 442-246 | Verizon | MORONGOVLY | 2014-06-17 | yes | yes |
| 442-247 | AT&T | CALIFORNCY | 2014-09-03 | yes | yes |
| 442-248 | Verizon | ESCONDIDO | 2014-09-26 | yes | yes |
| 442-249 | Lumen | VTVL ADLN | 2015-03-23 | yes | yes |
| 442-250 | Peerless | CALEXICO | 2017-06-15 | yes | yes |
| 442-251 | T-Mobile | VTVL HSPR | 2014-11-24 | yes | yes |
| 442-252 | Bandwidth | CALEXICO | – | yes | yes |
| 442-253 | Lumen | CALIPATRIA | 2014-06-27 | yes | yes |
| 442-254 | Onvoy | FALLBROOK | 2014-12-01 | yes | yes |
| 442-255 | T-Mobile | VICTORVL | 2015-08-04 | yes | yes |
| 442-256 | Verizon | INDIO | 2015-01-16 | yes | yes |
| 442-257 | Verizon | ESCONDIDO | 2015-01-21 | yes | yes |
| 442-258 | Verizon | EL CENTRO | 2015-03-17 | yes | yes |
| 442-259 | Bandwidth | SUMMIT VLY | 2015-10-19 | yes | yes |
| 442-260 | TERRA NOVA TELECOM INC. | DSERTHTSPG | – | yes | yes |
| 442-261 | INTEGRATED PATH COMMUNICATIONS, LLC - CA | SHOSHONE | – | yes | yes |
| 442-262 | T-Mobile | OCSD OCSD | 2015-04-14 | yes | yes |
| 442-263 | Onvoy | PAUMA VLY | – | yes | yes |
| 442-264 | T-Mobile | OCSD OCSD | 2014-10-17 | yes | yes |
| 442-265 | Lumen | EL CENTRO | 2014-11-10 | yes | yes |
| 442-266 | Peerless | OCSD OCSD | 2017-06-15 | yes | yes |
| 442-267 | Verizon | VTVL HSPR | – | yes | yes |
| 442-268 | Lumen | PALM SPG | 2015-11-02 | yes | yes |
| 442-269 | Lumen | JOSHUATREE | 2015-12-03 | yes | yes |
| 442-270 | T-Mobile | EL CENTRO | 2017-09-20 | yes | yes |
| 442-271 | Verizon | EL CENTRO | 2015-01-16 | yes | yes |
| 442-272 | Bandwidth | INYOKERN | 2015-06-16 | yes | yes |
| 442-273 | T-Mobile | VISTA | 2015-03-09 | yes | yes |
| 442-274 | AT&T | PALMDESERT | 2015-03-04 | yes | yes |
| 442-275 | NUSO, LLC | PALM SPG | – | yes | yes |
| 442-276 | Onvoy | PINYON | 2015-12-03 | yes | yes |
| 442-277 | Onvoy | ESCONDIDO | 2017-12-22 | yes | yes |
| 442-278 | AT&T | VALLEY CTR | 2015-08-27 | yes | yes |
| 442-279 | T-Mobile | BRAWLEY | 2018-03-29 | yes | yes |
| 442-280 | T-Mobile | BARSTOW | 2018-04-11 | yes | yes |
| 442-281 | AT&T | ESCONDIDO | 2011-12-30 | yes | yes |
| 442-282 | AT&T | PALMDESERT | 2015-12-03 | yes | yes |
| 442-283 | Verizon | EL CENTRO | – | yes | yes |
| 442-284 | T-Mobile | VICTORVL | 2015-03-13 | yes | yes |
| 442-285 | AT&T | CALIFORNCY | 2015-07-06 | yes | yes |
| 442-286 | Verizon | ESCONDIDO | 2016-05-27 | yes | yes |
| 442-287 | Lumen | OCSD CRLS | 2016-05-04 | yes | yes |
| 442-288 | AT&T | OCSD PDTN | 2018-04-24 | yes | yes |
| 442-289 | SHELCOMM | VICTORVL | 2018-05-08 | – | yes |
| 442-290 | Vonage | PALM SPG | 2018-06-13 | yes | yes |
| 442-291 | T-Mobile | VISTA | 2016-07-25 | yes | yes |
| 442-292 | UTILITY TELECOM GROUP, LLC - CA | VTVL APVY | 2017-03-27 | yes | yes |
| 442-293 | Bandwidth | BORREGO | 2015-09-09 | yes | yes |
| 442-294 | T-Mobile | RIDGECREST | 2016-06-10 | yes | yes |
| 442-295 | Verizon | BARSTOW | 2016-07-11 | yes | yes |
| 442-296 | RACE TELECOMMUNICATIONS, INC. - CA | CROWLEY LK | 2016-10-28 | yes | yes |
| 442-297 | T-Mobile | EL CENTRO | 2016-09-21 | yes | yes |
| 442-298 | RACE TELECOMMUNICATIONS, INC. - CA | TRONA | 2016-10-28 | yes | yes |
| 442-299 | SHELCOMM | VTVL HSPR | 2018-07-31 | – | yes |
| 442-300 | Onvoy | INDIO | – | yes | yes |
| 442-301 | Onvoy | JUNE LAKE | 2016-02-26 | yes | yes |
| 442-302 | Peerless | LUCERNEVLY | 2018-09-27 | yes | yes |
| 442-303 | T-Mobile | OCSD CRLS | 2018-10-15 | yes | yes |
| 442-304 | Onvoy | EAGLE MT | 2018-10-22 | yes | yes |
| 442-305 | Onvoy | PALMDESERT | 2019-03-07 | yes | yes |
| 442-306 | T-Mobile | INDIO | 2019-03-19 | yes | yes |
| 442-307 | T-Mobile | INDIO | 2020-01-10 | yes | yes |
| 442-308 | CSC WIRELESS, LLC | JUNE LAKE | 2019-03-26 | yes | yes |
| 442-309 | Verizon | BARSTOW | 2019-08-07 | yes | yes |
| 442-312 | Peerless | PINE CREEK | 2019-10-02 | yes | yes |
| 442-313 | Onvoy | HAVASULAKE | 2019-11-15 | yes | yes |
| 442-314 | AT&T | VICTORVL | 2020-02-10 | yes | yes |
| 442-315 | CSC WIRELESS, LLC | PALM SPG | 2020-02-13 | yes | yes |
| 442-316 | AT&T | VTVL HSPR | 2020-03-18 | yes | yes |
| 442-317 | T-Mobile | ESCONDIDO | 2020-04-24 | yes | yes |
| 442-318 | Onvoy | LEE VINING | – | yes | yes |
| 442-319 | AT&T | CALIFORNCY | 2020-05-13 | yes | yes |
| 442-320 | Vonage | ENCINITAS | 2020-06-29 | yes | yes |
| 442-321 | Verizon | HOMESTDVLY | 2014-06-17 | yes | yes |
| 442-322 | T-Mobile | BRAWLEY | 2020-07-02 | yes | yes |
| 442-324 | Charter | INDIO | 2015-03-16 | yes | yes |
| 442-325 | Bandwidth | OCSD CRLS | 2015-06-16 | yes | yes |
| 442-326 | CSC VOICE, LLC | INDEPNDNCE | 2015-07-06 | yes | yes |
| 442-327 | Charter | VICTORVL | 2016-08-15 | yes | yes |
| 442-328 | COMMIO, LLC | LONE PINE | – | yes | yes |
| 442-329 | AT&T | ESCONDIDO | 2020-08-13 | yes | yes |
| 442-330 | AT&T | ESCONDIDO | 2021-07-06 | yes | yes |
| 442-331 | AT&T | ESCONDIDO | 2020-09-08 | yes | yes |
| 442-332 | AT&T | PALM SPG | 2020-09-08 | yes | yes |
| 442-333 | Bandwidth | OCSD OCSD | – | yes | yes |
| 442-334 | Telnyx | PALMDESERT | 2017-05-10 | yes | yes |
| 442-335 | AT&T | PALM SPG | 2020-11-13 | yes | yes |
| 442-336 | FRACTEL, LLC | VTVL APVY | 2019-03-20 | yes | yes |
| 442-337 | AT&T | VICTORVL | 2020-02-10 | yes | yes |
| 442-338 | AT&T | PALM SPG | 2020-11-13 | yes | yes |
| 442-339 | T-Mobile | OCSD CRLS | 2020-04-24 | yes | yes |
| 442-340 | T-Mobile | BRAWLEY | 2020-11-23 | yes | yes |
| 442-341 | AT&T | ESCONDIDO | 2020-11-27 | yes | yes |
| 442-342 | IP HORIZON LLC | PALM SPG | 2020-11-30 | yes | yes |
| 442-343 | AT&T | VICTORVL | 2020-12-01 | yes | yes |
| 442-344 | AT&T | VICTORVL | 2020-12-09 | yes | yes |
| 442-345 | Onvoy | HOLTVILLE | – | yes | yes |
| 442-346 | FRACTEL, LLC | BENTON | 2020-09-17 | yes | yes |
| 442-347 | T-Mobile | BARSTOW | 2015-04-14 | yes | yes |
| 442-348 | FRACTEL, LLC | VICTORVL | 2019-03-20 | yes | yes |
| 442-349 | AT&T | ESCONDIDO | 2020-12-16 | yes | yes |
| 442-350 | AT&T | ESCONDIDO | 2020-02-10 | yes | yes |
| 442-351 | AT&T | ESCONDIDO | 2020-12-16 | yes | yes |
| 442-352 | AT&T | PALM SPG | 2020-12-16 | yes | yes |
| 442-353 | SKYE TELECOM LLC DBA SKYETEL | VICTORVL | – | yes | yes |
| 442-354 | T-Mobile | BRAWLEY | 2021-03-11 | yes | yes |
| 442-355 | T-Mobile | ESCONDIDO | 2021-03-24 | yes | yes |
| 442-356 | FRACTEL, LLC | VTVL HSPR | 2020-05-29 | yes | yes |
| 442-357 | Verizon | ENCINITAS | 2021-04-02 | yes | yes |
| 442-358 | T-Mobile | RAMONA | 2021-05-18 | yes | yes |
| 442-359 | Verizon | OCSD CRLS | 2021-07-07 | yes | yes |
| 442-360 | AT&T | PALM SPG | 2021-07-29 | yes | yes |
| 442-361 | AT&T | PALM SPG | 2021-07-29 | yes | yes |
| 442-362 | Verizon | VISTA | 2021-07-30 | yes | yes |
| 442-363 | Frontier | VTVL ADLN | 2017-12-21 | yes | yes |
| 442-364 | T-Mobile | BRAWLEY | 2021-10-28 | yes | yes |
| 442-365 | AT&T | VTVL APVY | 2021-09-02 | yes | yes |
| 442-366 | AT&T | PALM SPG | 2021-08-05 | yes | yes |
| 442-367 | AT&T | CALEXICO | 2021-10-19 | yes | yes |
| 442-368 | T-Mobile | VICTORVL | 2021-10-26 | yes | yes |
| 442-369 | Verizon | ENCINITAS | 2021-09-23 | yes | yes |
| 442-370 | T-Mobile | INDIO | 2021-10-29 | yes | yes |
| 442-371 | TPx | PALMDESERT | 2022-05-26 | yes | yes |
| 442-372 | Lumen | OCSD CRLS | 2022-04-29 | yes | yes |
| 442-373 | Bandwidth | BRAWLEY | 2022-01-14 | yes | yes |
| 442-374 | COMMIO, LLC | FALLBROOK | 2022-06-29 | yes | yes |
| 442-375 | T-Mobile | OCSD OCSD | 2022-01-07 | yes | yes |
| 442-376 | TPx | ESCONDIDO | 2022-06-29 | yes | yes |
| 442-377 | FRACTEL, LLC | BAKER | 2021-03-10 | yes | yes |
| 442-378 | T-Mobile | FALLBROOK | 2022-02-28 | yes | yes |
| 442-379 | T-Mobile | EL CENTRO | 2021-11-15 | yes | yes |
| 442-380 | AT&T | VICTORVL | 2020-02-10 | yes | yes |
| 442-381 | TPx | INDIO | 2022-05-26 | yes | yes |
| 442-382 | T-Mobile | VTVL HSPR | 2018-04-09 | yes | yes |
| 442-383 | TPx | DSERTHTSPG | 2022-06-29 | yes | yes |
| 442-384 | Charter | DESERT CTR | 2022-07-11 | yes | yes |
| 442-385 | AT&T | SAN MARCOS | 2021-11-22 | yes | yes |
| 442-386 | FRACTEL, LLC | VICTORVL | 2021-03-05 | yes | yes |
| 442-387 | TPx | SALTON | 2022-07-13 | yes | yes |
| 442-388 | FRACTEL, LLC | DESERT CTR | 2020-09-17 | yes | yes |
| 442-389 | Bandwidth | BLYTHE | 2022-03-01 | yes | yes |
| 442-390 | T-Mobile | ENCINITAS | 2022-07-14 | yes | yes |
| 442-391 | Dish | WINTERHVN | 2022-07-28 | yes | yes |
| 442-392 | AT&T | VICTORVL | 2022-10-21 | yes | yes |
| 442-393 | COMMIO, LLC | CALIPATRIA | 2022-11-03 | yes | yes |
| 442-394 | NUSO, LLC | INDIO | – | yes | yes |
| 442-395 | AT&T | PALM SPG | 2023-09-26 | yes | yes |
| 442-396 | NUSO, LLC | PALM SPG | 2023-02-10 | yes | yes |
| 442-397 | Comcast | PALMDESERT | 2023-04-12 | yes | yes |
| 442-398 | Bandwidth | VTVL HSPR | 2022-10-21 | yes | yes |
| 442-399 | FRACTEL, LLC | EL MIRAGE | 2020-09-17 | yes | yes |
| 442-400 | Verizon | INDIO | – | yes | yes |
| 442-401 | Dish | VICTORVL | 2023-05-30 | yes | yes |
| 442-402 | SKYE TELECOM LLC DBA SKYETEL | PALM SPG | 2021-09-24 | yes | yes |
| 442-403 | Dish | DSERTHTSPG | 2023-05-31 | yes | yes |
| 442-404 | Dish | VISTA | 2023-05-31 | yes | yes |
| 442-405 | AT&T | VTVL ADLN | 2023-06-16 | yes | yes |
| 442-406 | AT&T | VTVL APVY | 2023-06-15 | yes | yes |
| 442-407 | AT&T | PALM SPG | 2023-06-16 | yes | yes |
| 442-409 | AT&T | CALEXICO | 2023-06-16 | yes | yes |
| 442-410 | Onvoy | KERNVILLE | 2023-06-22 | yes | yes |
| 442-412 | COMMIO, LLC | BRAWLEY | 2023-08-09 | yes | yes |
| 442-413 | T-Mobile | ENCINITAS | 2023-08-10 | yes | yes |
| 442-414 | Verizon | VICTORVL | 2023-08-11 | yes | yes |
| 442-416 | T-Mobile | SAN MARCOS | 2023-08-16 | yes | yes |
| 442-417 | AT&T | CALIFORNCY | 2023-08-28 | yes | yes |
| 442-418 | AT&T | PALMDESERT | 2023-08-28 | yes | yes |
| 442-419 | Onvoy | VICTORVL | 2023-10-04 | yes | yes |
| 442-420 | COMMIO, LLC | PALM SPG | 2022-03-07 | yes | yes |
| 442-421 | Charter | LKISABELLA | 2023-04-12 | yes | yes |
| 442-422 | FRACTEL, LLC | SHOSHONE | 2020-05-29 | yes | yes |
| 442-423 | T-Mobile | LKISABELLA | – | yes | yes |
| 442-425 | Charter | VICTORVL | 2023-04-12 | yes | yes |
| 442-426 | Charter | WRIGHTWOOD | 2023-04-12 | yes | yes |
| 442-427 | Lumen | OCSD CRLS | 2023-08-22 | yes | yes |
| 442-428 | Onvoy | VTVL HSPR | 2023-10-04 | yes | yes |
| 442-429 | T-Mobile | YUCCA VLY | 2023-10-16 | yes | yes |
| 442-430 | T-Mobile | VISTA | 2023-10-16 | yes | yes |
| 442-431 | T-Mobile | EL CENTRO | 2024-01-11 | yes | yes |
| 442-432 | FRACTEL, LLC | CALEXICO | 2020-09-17 | yes | yes |
| 442-433 | FRACTEL, LLC | BRAWLEY | 2021-04-22 | yes | yes |
| 442-434 | Onvoy | INDIO | 2024-01-30 | yes | yes |
| 442-435 | Onvoy | PALM SPG | 2024-01-30 | yes | yes |
| 442-436 | T-Mobile | BRAWLEY | 2024-02-14 | yes | yes |
| 442-437 | AT&T | VICTORVL | 2024-02-20 | yes | yes |
| 442-438 | Verizon | VICTORVL | 2024-02-27 | yes | yes |
| 442-439 | Verizon | OCSD OCSD | 2024-02-27 | yes | yes |
| 442-440 | Onvoy | LENWOOD | 2019-11-14 | yes | yes |
| 442-441 | Onvoy | BRSW YERM | 2019-11-14 | yes | yes |
| 442-442 | T-Mobile | BRAWLEY | 2024-11-08 | yes | yes |
| 442-443 | Onvoy | MORONGOVLY | 2019-11-14 | yes | yes |
| 442-444 | Onvoy | FALLBROOK | – | yes | yes |
| 442-445 | Charter | BISHOP | 2023-04-12 | yes | yes |
| 442-446 | TON80 COMMUNICATIONS, LLC | CALIFORNCY | 2022-01-11 | yes | yes |
| 442-447 | Charter | BORON | 2023-04-12 | yes | yes |
| 442-448 | Charter | LENWOOD | 2023-04-12 | yes | yes |
| 442-449 | COMMIO, LLC | OCSD OCSD | 2022-02-14 | yes | yes |
| 442-450 | Onvoy | TWNTYNPLMS | 2024-03-11 | yes | yes |
| 442-451 | Telnyx | YUCCA VLY | 2021-06-23 | yes | yes |
| 442-452 | Onvoy | VALLEY CTR | 2024-03-11 | yes | yes |
| 442-453 | Onvoy | VTVL HSPR | 2024-03-14 | yes | yes |
| 442-454 | AT&T | INDIO | 2024-03-18 | yes | yes |
| 442-455 | Onvoy | BARSTOW | 2021-06-07 | yes | yes |
| 442-456 | T-Mobile | EL CENTRO | – | yes | yes |
| 442-457 | Onvoy | VTVL ADLN | 2024-03-21 | yes | yes |
| 442-458 | AT&T | INDIO | 2025-03-06 | yes | yes |
| 442-459 | T-Mobile | EL CENTRO | 2024-04-12 | yes | yes |
| 442-460 | Onvoy | CALEXICO | 2024-04-29 | yes | yes |
| 442-461 | T-Mobile | BRAWLEY | 2024-05-01 | yes | yes |
| 442-462 | T-Mobile | VTVL HSPR | 2024-05-31 | yes | yes |
| 442-463 | Onvoy | INDIO | 2024-06-21 | yes | yes |
| 442-464 | Verizon | VISTA | 2024-06-25 | yes | yes |
| 442-465 | Bandwidth | OCOTILLO | – | yes | yes |
| 442-466 | FRACTEL, LLC | OCSD PDTN | 2021-04-23 | yes | yes |
| 442-467 | T-Mobile | EL CENTRO | 2024-06-25 | yes | yes |
| 442-468 | Onvoy | PALM SPG | 2024-07-05 | yes | yes |
| 442-469 | Verizon | VICTORVL | 2024-08-16 | yes | yes |
| 442-470 | T-Mobile | PALMDESERT | 2024-08-29 | yes | yes |
| 442-471 | AT&T | INDIO | 2024-09-09 | yes | yes |
| 442-472 | Verizon | SAN MARCOS | 2024-09-09 | yes | yes |
| 442-473 | T-Mobile | VTVL HSPR | 2024-09-12 | yes | yes |
| 442-474 | T-Mobile | EL CENTRO | 2024-09-12 | yes | yes |
| 442-475 | AT&T | CALIFORNCY | 2024-09-20 | yes | yes |
| 442-476 | LEAP TELECOM, LLC | PALM SPG | 2024-09-23 | yes | yes |
| 442-477 | FRACTEL, LLC | RIDGECREST | 2020-05-29 | yes | yes |
| 442-478 | T-Mobile | EL CENTRO | 2024-10-09 | yes | yes |
| 442-479 | AT&T | EL CENTRO | 2024-11-12 | yes | yes |
| 442-480 | AT&T | VISTA | 2024-11-12 | yes | yes |
| 442-481 | AT&T | PALM SPG | 2024-11-13 | yes | yes |
| 442-482 | AT&T | VTVL APVY | 2025-01-13 | yes | yes |
| 442-484 | AT&T | INDIO | 2018-01-26 | yes | yes |
| 442-485 | Charter | BARSTOW | 2025-01-28 | yes | yes |
| 442-486 | Onvoy | VTVL APVY | 2025-03-13 | yes | yes |
| 442-487 | AT&T | OCSD CRLS | 2025-03-27 | yes | yes |
| 442-488 | FRACTEL, LLC | ESCONDIDO | 2020-09-17 | yes | yes |
| 442-489 | Verizon | BRAWLEY | 2025-04-11 | yes | yes |
| 442-490 | WAVENATION, LLC | PALM SPG | 2025-07-30 | yes | yes |
| 442-491 | Bandwidth | PALM SPG | 2025-08-11 | yes | yes |
| 442-492 | AT&T | INDIO | 2025-08-14 | yes | yes |
| 442-493 | T-Mobile | VTVL HSPR | 2025-10-17 | yes | yes |
| 442-494 | T-Mobile | BRAWLEY | 2025-10-30 | yes | yes |
| 442-495 | AT&T | OCSD PDTN | 2026-01-16 | yes | yes |
| 442-496 | T-Mobile | BRAWLEY | 2026-01-16 | yes | yes |
| 442-497 | AT&T | EL CENTRO | 2026-02-04 | yes | yes |
| 442-498 | AT&T | CALIFORNCY | 2026-03-26 | yes | yes |
| 442-499 | FRACTEL, LLC | FORT IRWIN | 2020-09-17 | yes | yes |
| 442-500 | Onvoy | OCSD OCSD | – | yes | yes |
| 442-501 | Onvoy | IMPERIAL | 2026-04-08 | yes | yes |
| 442-502 | T-Mobile | VICTORVL | 2026-08-20 | yes | no |
| 442-503 | Verizon | SAN MARCOS | 2026-09-02 | yes | no |
| 442-504 | AT&T | PALM SPG | 2026-09-09 | yes | no |
| 442-515 | Telnyx | SAN MARCOS | 2016-12-15 | yes | yes |
| 442-522 | FRACTEL, LLC | PARKER DAM | 2022-01-26 | yes | yes |
| 442-524 | Twilio | VTVL ADLN | 2020-09-23 | yes | yes |
| 442-529 | FRACTEL, LLC | INDIO | 2020-04-23 | yes | yes |
| 442-532 | TON80 COMMUNICATIONS, LLC | EL CENTRO | 2022-01-07 | yes | yes |
| 442-533 | FRACTEL, LLC | VICTORVL | 2022-02-22 | yes | yes |
| 442-542 | Onvoy | NEEDLES | – | yes | yes |
| 442-544 | FRACTEL, LLC | ESCONDIDO | 2022-02-22 | yes | yes |
| 442-566 | FRACTEL, LLC | VALLEY CTR | 2021-09-21 | yes | yes |
| 442-567 | FRACTEL, LLC | ESCONDIDO | 2021-09-21 | yes | yes |
| 442-568 | TON80 COMMUNICATIONS, LLC | ENCINITAS | 2022-02-21 | yes | yes |
| 442-577 | FRACTEL, LLC | PAUMA VLY | 2020-05-29 | yes | yes |
| 442-587 | OPENTACT INC. | INDIO | 2026-06-04 | yes | yes |
| 442-588 | FRACTEL, LLC | HOMESTDVLY | 2020-09-17 | yes | yes |
| 442-599 | FRACTEL, LLC | INDIO | 2020-09-17 | yes | yes |
| 442-600 | Onvoy | VTVL HSPR | – | yes | yes |
| 442-615 | AT&T | OCSD OCSD | 2014-10-27 | yes | yes |
| 442-637 | TON80 COMMUNICATIONS, LLC | INDIO | 2022-01-14 | yes | yes |
| 442-642 | Onvoy | NEWBERRY | – | yes | yes |
| 442-646 | TON80 COMMUNICATIONS, LLC | BRAWLEY | 2022-01-10 | yes | yes |
| 442-655 | T-Mobile | SAN MARCOS | 2021-09-17 | yes | yes |
| 442-666 | Onvoy | PALMDESERT | – | yes | yes |
| 442-667 | FRACTEL, LLC | INYOKERN | 2020-12-30 | yes | yes |
| 442-677 | FRACTEL, LLC | PALMDESERT | 2020-05-29 | yes | yes |
| 442-683 | TON80 COMMUNICATIONS, LLC | HOMESTDVLY | 2020-11-11 | yes | yes |
| 442-688 | FRACTEL, LLC | PALO VERDE | 2020-07-10 | yes | yes |
| 442-699 | FRACTEL, LLC | TRONA | 2020-11-09 | yes | yes |
| 442-732 | FRACTEL, LLC | SANDY VLLY | 2020-06-05 | yes | yes |
| 442-733 | TON80 COMMUNICATIONS, LLC | PINYON | 2022-01-14 | yes | yes |
| 442-742 | Onvoy | SUMMIT VLY | – | yes | yes |
| 442-744 | FRACTEL, LLC | BRIDGEPORT | 2020-11-06 | yes | yes |
| 442-755 | FRACTEL, LLC | VICTORVL | 2021-04-22 | yes | yes |
| 442-758 | FRACTEL, LLC | OLANCHA | 2020-05-29 | yes | yes |
| 442-766 | FRACTEL, LLC | INYOKERN | 2020-05-29 | yes | yes |
| 442-777 | Bandwidth | ESCONDIDO | – | yes | yes |
| 442-786 | FRACTEL, LLC | BLYTHE | 2020-09-17 | yes | yes |
| 442-788 | FRACTEL, LLC | DSERTHTSPG | 2020-05-29 | yes | yes |
| 442-789 | FRACTEL, LLC | WELDON | 2021-03-10 | yes | yes |
| 442-799 | FRACTEL, LLC | TWNTYNPLMS | 2021-03-01 | yes | yes |
| 442-800 | Onvoy | VTVL HSPR | – | yes | yes |
| 442-822 | FRACTEL, LLC | INDIO | 2022-02-22 | yes | yes |
| 442-833 | FRACTEL, LLC | JOSHUATREE | 2020-11-09 | yes | yes |
| 442-842 | FRACTEL, LLC | INDEPNDNCE | 2020-05-29 | yes | yes |
| 442-844 | SKYE TELECOM LLC DBA SKYETEL | SANDY VLLY | 2021-10-01 | yes | yes |
| 442-855 | FRACTEL, LLC | VTVL APVY | 2022-02-22 | yes | yes |
| 442-866 | FRACTEL, LLC | BRAWLEY | 2021-07-13 | yes | yes |
| 442-867 | FRACTEL, LLC | BARSTOW | 2021-09-21 | yes | yes |
| 442-877 | FRACTEL, LLC | ESCONDIDO | 2020-05-29 | yes | yes |
| 442-888 | Onvoy | OCSD OCSD | – | yes | yes |
| 442-894 | Verizon | EL CENTRO | 2026-05-29 | yes | yes |
| 442-895 | Twilio | PALM SPG | 2021-11-22 | yes | yes |
| 442-899 | FRACTEL, LLC | WARNER SPG | 2020-12-21 | yes | yes |
| 442-900 | Onvoy | OCOTILLO | – | yes | yes |
| 442-933 | FRACTEL, LLC | INDIO | 2021-04-23 | yes | yes |
| 442-936 | Charter | WRWD PHLN | 2016-11-18 | yes | yes |
| 442-944 | FRACTEL, LLC | VISTA | 2021-10-25 | yes | yes |
| 442-946 | FRACTEL, LLC | EARP LSLK | 2020-05-29 | yes | yes |
| 442-955 | FRACTEL, LLC | VICTORVL | 2020-11-09 | yes | yes |
| 442-966 | FRACTEL, LLC | RIDGECREST | 2020-11-06 | yes | yes |
| 442-977 | FRACTEL, LLC | OCSD CRLS | 2021-07-13 | yes | yes |
| 442-998 | T-Mobile | PALMDESERT | 2024-03-27 | yes | yes |
| 442-999 | Onvoy | ESCONDIDO | – | yes | yes |
Frequently asked
How many prefixes does area code 442 have?
356 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 3,560 thousand-number ranges across 78 rate centers.
What do the first three digits after 442 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 442 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 442 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 354 of 442'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