Recent prefix assignments
334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2021-10-29 | 769-271 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NATCHEZ | MS |
| 2021-10-29 | 769-272 | 0–9 XXXall 10 · 3 holders which blocks → | POWERTEL MEMPHIS LICENSES, INC. | 7474 | VICKSBURG | MS |
| 2021-10-29 | 862-389 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | NEWTON | NJ |
| 2021-10-28 | 213-492 | 0–9 XXXwhole prefix which blocks → | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2021-10-28 | 213-574 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2021-10-28 | 254-483 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - TX | 903C | TEMPLE | TX |
| 2021-10-28 | 307-291 | 0–9 XXXall 10 · 3 holders which blocks → | COMMIO, LLC | 939H | CODY | WY |
| 2021-10-28 | 341-204 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK GRNLF | CA |
| 2021-10-28 | 341-420 | 0–9 XXXall 10 · 5 holders which blocks → | SONIC TELECOM, LLC - CA | 433E | OKLD FRTVL | CA |
| 2021-10-28 | 346-518 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | PINEHURST | TX |
| 2021-10-28 | 346-522 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - TX | 903C | HUMBLE | TX |
| 2021-10-28 | 424-454 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2021-10-28 | 424-460 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2021-10-28 | 425-370 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2021-10-28 | 442-364 | 0–9 XXXwhole prefix which blocks → | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2021-10-28 | 520-242 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2021-10-28 | 520-451 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2021-10-28 | 559-378 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | TULARE | CA |
| 2021-10-28 | 559-576 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | PORTERVL | CA |
| 2021-10-28 | 640-214 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NJ | 118F | EWING | NJ |
| 2021-10-28 | 661-531 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2021-10-28 | 701-504 | 0–9 XXXall 10 · 6 holders which blocks → | COMMIO, LLC | 939H | DICKINSON | ND |
| 2021-10-28 | 708-630 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IL | 984E | BERWYN | IL |
| 2021-10-28 | 747-488 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | SNFN SNFN | CA |
| 2021-10-28 | 830-354 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - TX | 903C | DEL RIO | TX |
| 2021-10-28 | 830-362 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | FREDECKSBG | TX |
| 2021-10-28 | 830-364 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - TX | 903C | HONDO | TX |
| 2021-10-28 | 840-207 | 0–9 XXXwhole prefix which blocks → | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2021-10-28 | 840-588 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | DIAMONDBAR | CA |
| 2021-10-28 | 840-677 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | ETIWANDA | CA |
| 2021-10-28 | 872-295 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN03 | IL |
| 2021-10-28 | 872-296 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC | 224C | CHICGOZN03 | IL |
| 2021-10-28 | 872-336 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | CHICGOZN01 | IL |
| 2021-10-28 | 872-946 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | CHICGOZN03 | IL |
| 2021-10-28 | 909-916 | 0XXX1XXX2XXX8XXX9XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | BIGBEAR LK | CA |
| 2021-10-28 | 945-228 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | CEDAR HILL | TX |
| 2021-10-28 | 971-417 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2021-10-27 | 224-455 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | WAUKEGAN | IL |
| 2021-10-27 | 224-466 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | NORTHBROOK | IL |
| 2021-10-27 | 224-833 | 0–9 XXXall 10 · 2 holders which blocks → | FRACTEL, LLC | 965H | ELGIN | IL |
| 2021-10-27 | 224-844 | 0–9 XXXall 10 · 2 holders which blocks → | FRACTEL, LLC | 965H | ARLIGTNHTS | IL |
| 2021-10-27 | 269-346 | 0XXX3XXX · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MI | 991E | HOPKINS | MI |
| 2021-10-27 | 302-586 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - DE | 073F | MILFORD | DE |
| 2021-10-27 | 319-303 | 1XXX2XXX7XXX8XXX · 4 holders which blocks → | AUREON COMMUNICATIONS, LLC | 444G | DENVER | IA |
| 2021-10-27 | 319-305 | 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → | AUREON COMMUNICATIONS, LLC | 444G | MT VERNON | IA |
| 2021-10-27 | 331-758 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | AURORA | IL |
| 2021-10-27 | 413-450 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MA | 990E | AMHERST | MA |
| 2021-10-27 | 463-258 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IN | 105F | DANVILLE | IN |
| 2021-10-27 | 463-259 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IN | 105F | CUMBERLAND | IN |
| 2021-10-27 | 470-879 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | CARROLLTON | GA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.