All assignees
800 prefixes in 530 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 530-300 | MARYSVILLE | 6010 | — | Yes |
| 530-301 | MARYSVILLE | 6010 | — | Yes |
| 530-302 | DAVIS | 8826 | — | Yes |
| 530-303 | PLVL WEST | 8826 | — | Yes |
| 530-304 | DAVIS | 6010 | — | — |
| 530-305 | AUBN MAIN | 6010 | — | — |
| 530-306 | PLVL WEST | 6010 | — | — |
| 530-307 | SOUTHTAHOE | 6010 | — | Yes |
| 530-308 | AUBN MAIN | 6529 | — | Yes |
| 530-309 | WOODLAND | 649C | — | Yes |
| 530-310 | SUSANVILLE | 6010 | 2001-07-16 | Yes |
| 530-311 | XXXXXXXXXX | MULT | — | — |
| 530-312 | WOODLAND | 6529 | 2001-12-26 | Yes |
| 530-313 | SHINGLESPG | 7145 | — | Yes |
| 530-314 | SOUTHTAHOE | 6529 | 2001-06-26 | Yes |
| 530-315 | MARYSVILLE | 5562 | 2001-11-29 | Yes |
| 530-316 | BLAIRSDEN | 981E | — | Yes |
| 530-317 | PLVL WEST | 649C | 2016-03-03 | Yes |
| 530-318 | SOUTHTAHOE | 6010 | — | Yes |
| 530-319 | REDDING | 734E | — | Yes |
| 530-320 | AUBN MAIN | 6006 | — | — |
| 530-321 | CHICO | 6529 | — | Yes |
| 530-322 | PORTOLA | 981E | — | Yes |
| 530-323 | COLFAX | 649C | — | — |
| 530-324 | WILLOW CRK | 981E | — | Yes |
| 530-325 | DOWNIEVL | 649C | — | — |
| 530-326 | ORLAND | 649C | — | Yes |
| 530-327 | PARADISE | 394L | — | Yes |
| 530-328 | AUBN MAIN | 981E | — | Yes |
| 530-329 | MARYSVILLE | 6010 | — | Yes |
| 530-330 | WILLOWS | 6529 | — | Yes |
| 530-331 | YREKA | 515J | — | Yes |
| 530-332 | CHICO | 9740 | — | Yes |
| 530-333 | GEORGETOWN | 9740 | — | Yes |
| 530-334 | GEORGETOWN | 515J | — | Yes |
| 530-335 | BURNEY | 2308 | — | Yes |
| 530-336 | FALLRVRMLS | 2308 | — | Yes |
| 530-337 | MONTGOYCRK | 2308 | — | Yes |
| 530-338 | REDDING | 981E | 2013-04-09 | Yes |
| 530-339 | REDDING | 9740 | — | Yes |
| 530-340 | YREKA | 6010 | — | Yes |
| 530-341 | DAVIS | 7229 | — | Yes |
| 530-342 | CHICO | 9740 | — | — |
| 530-343 | CHICO | 9740 | — | — |
| 530-344 | PLVL WEST | 9740 | — | Yes |
| 530-345 | CHICO | 9740 | — | — |
| 530-346 | COLFAX | 4420 | — | Yes |
| 530-347 | COTTONWOOD | 9740 | — | Yes |
| 530-348 | COTTONWOOD | 792K | — | Yes |
| 530-349 | COLFAX | 7145 | — | Yes |
| 530-350 | SHINGLESPG | 7229 | 2002-01-29 | Yes |
| 530-351 | REDDING | 7145 | — | Yes |
| 530-352 | PLATINA | 2321 | — | Yes |
| 530-353 | OROVILLE | 8826 | 2011-08-09 | Yes |
| 530-354 | CHICO | 5562 | 2001-11-29 | Yes |
| 530-355 | REDDING | 6010 | 2001-01-25 | Yes |
| 530-356 | REDDING | 6006 | 2001-07-17 | — |
| 530-357 | OLINDA | 2321 | — | — |
| 530-358 | NOSAN JUAN | 373F | 2013-03-08 | Yes |
| 530-359 | FRENCHGLCH | 9740 | — | Yes |
| 530-360 | ANDERSON | 5562 | 2012-06-18 | Yes |
| 530-361 | WILLOWS | 515J | — | Yes |
| 530-362 | NEVADACITY | 5562 | — | Yes |
| 530-363 | PLVL WEST | 6529 | — | Yes |
| 530-364 | ANDERSON | 792K | — | Yes |
| 530-365 | ANDERSON | 9740 | — | — |
| 530-366 | RED BLUFF | 7421 | — | Yes |
| 530-367 | FORESTHILL | 2318 | — | — |
| 530-368 | AUBN MAIN | 6010 | 2001-05-18 | Yes |
| 530-369 | NOSAN JUAN | 7894 | — | — |
| 530-370 | BIGGS | 6010 | — | Yes |
| 530-371 | LOYALTON | 939H | 2023-08-10 | Yes |
| 530-372 | RICHVALE | 939H | 2023-08-10 | Yes |
| 530-373 | AUBN NORTH | 939H | 2023-08-10 | Yes |
| 530-374 | GRVY MAIN | 9748 | — | — |
| 530-375 | WESTWOOD | 6010 | 2001-12-26 | Yes |
| 530-376 | DAVIS | 939H | 2023-12-21 | Yes |
| 530-377 | COTTONWOOD | 981E | — | Yes |
| 530-378 | ANDERSON | 9740 | — | Yes |
| 530-379 | WOODLAND | 6529 | 2012-09-14 | Yes |
| 530-380 | LEWISTON | 981E | — | Yes |
| 530-381 | AUBN MAIN | 9748 | — | — |
| 530-382 | AUBN MAIN | 6529 | 2020-08-27 | Yes |
| 530-383 | WOODLAND | 6010 | — | Yes |
| 530-384 | LOSMOLINOS | 9740 | — | Yes |
| 530-385 | GERBER | 9740 | — | Yes |
| 530-386 | TRUCKEE | 6010 | — | Yes |
| 530-387 | SHINGLESPG | 516C | — | Yes |
| 530-388 | ALTA | 7145 | — | Yes |
| 530-389 | ALTA | 9740 | — | Yes |
| 530-390 | LOSMOLINOS | 981E | — | Yes |
| 530-391 | PLVL WEST | 6010 | — | Yes |
| 530-392 | AUBN MAIN | 5562 | — | Yes |
| 530-393 | WILLIAMS | 6010 | — | Yes |
| 530-394 | QUINCY | 6010 | 2001-10-18 | Yes |
| 530-395 | REDDING | 981E | 2015-07-20 | Yes |
| 530-396 | OLINDA | 2321 | — | — |
| 530-397 | DORRIS | 2311 | — | — |
| 530-398 | MACDOEL | 2311 | — | — |
| 530-399 | CHICO | 073H | 2016-12-15 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.