Recent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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 |
|---|---|---|---|---|---|---|
| 2017-12-08 | 682-264 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2017-12-08 | 781-379 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | DEDHAM | MA |
| 2017-12-07 | 317-792 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2017-12-07 | 352-329 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | FOREST | FL |
| 2017-12-07 | 425-490 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | FALL CITY | WA |
| 2017-12-07 | 484-781 | 0–9 XXXall 10 · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | ALLENTOWN | PA |
| 2017-12-07 | 579-962 | not yet reported which blocks → | TELUS Quebec | 2243 | Morin Heights | — |
| 2017-12-07 | 762-320 | 0–9 XXXall 10 · 4 holders which blocks → | TELNYX LLC | 073H | AUGUSTA | GA |
| 2017-12-07 | 786-576 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | MIAMI | FL |
| 2017-12-07 | 825-206 | not yet reported which blocks → | TELUS | 8084 | Ardrossan | — |
| 2017-12-07 | 873-216 | not yet reported which blocks → | TELUS Quebec | 2243 | Gracefield | — |
| 2017-12-07 | 873-217 | not yet reported which blocks → | TELUS Quebec | 2243 | Quyon | — |
| 2017-12-07 | 873-218 | not yet reported which blocks → | TELUS Quebec | 2243 | Luskville | — |
| 2017-12-07 | 873-219 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Pierre-de-Wakefield | — |
| 2017-12-07 | 873-221 | not yet reported which blocks → | TELUS Quebec | 2243 | Perkins | — |
| 2017-12-07 | 904-453 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | JACKSONVL | FL |
| 2017-12-06 | 309-322 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IL | 984E | PEORIA | IL |
| 2017-12-06 | 364-444 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - KY | 896E | MAYFIELD | KY |
| 2017-12-06 | 641-631 | 0–9 XXXall 10 · 4 holders which blocks → | OMNITEL COMMUNICATIONS, INC. - IA | 3620 | CHARLES CY | IA |
| 2017-12-06 | 641-666 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | ONVOY, LLC - IA | 221F | OSAGE | IA |
| 2017-12-06 | 825-204 | not yet reported which blocks → | TELUS | 8084 | High Prairie | — |
| 2017-12-06 | 828-621 | 9XXX which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | BARNARDSVL | NC |
| 2017-12-06 | 828-769 | 4XXX9XXX · 2 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | SALUDA | NC |
| 2017-12-06 | 857-324 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | BOSTON | MA |
| 2017-12-06 | 857-326 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | BOSTON | MA |
| 2017-12-06 | 952-207 | 0–9 XXXall 10 · 5 holders which blocks → | MCC TELEPHONY LLC | 593K | TWINCITIES | MN |
| 2017-12-05 | 225-256 | 0–9 XXXall 10 · 2 holders which blocks → | COMCAST IP PHONE, LLC | 318J | BATONROUGE | LA |
| 2017-12-05 | 337-283 | 0–9 XXXall 10 · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ABBEVILLE | LA |
| 2017-12-05 | 662-406 | 2XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NOXAPATER | MS |
| 2017-12-05 | 904-439 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ST JOHNS | FL |
| 2017-12-05 | 931-341 | 0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 2 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | COOKEVL SO | TN |
| 2017-12-05 | 941-241 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRADENTON | FL |
| 2017-12-04 | 216-237 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | 7532 | CLEVELAND | OH |
| 2017-12-04 | 249-880 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Barrie | — |
| 2017-12-04 | 336-647 | 0–9 XXXall 10 · 4 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | ROXBORO | NC |
| 2017-12-04 | 343-880 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Orleans | — |
| 2017-12-04 | 365-887 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Richmond Hill | — |
| 2017-12-04 | 469-350 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2017-12-04 | 539-245 | 0–9 XXXall 10 · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | POCOLA | OK |
| 2017-12-04 | 539-352 | 0–9 XXXall 10 · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MOFFETT | OK |
| 2017-12-04 | 548-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Kitchener-Waterloo | — |
| 2017-12-04 | 548-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | London | — |
| 2017-12-04 | 548-880 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brantford | — |
| 2017-12-04 | 548-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Guelph | — |
| 2017-12-04 | 581-510 | not yet reported which blocks → | Sogetel Inc. | 8237 | Beauceville | — |
| 2017-12-04 | 873-250 | not yet reported which blocks → | Sogetel Inc. | 8237 | Nicolet | — |
| 2017-12-04 | 913-355 | 0–9 XXXall 10 · 3 holders which blocks → | EVERFAST FIBER NETWORKS LLC | 3915 | OLATHE | KS |
| 2017-12-02 | 236-333 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2017-12-02 | 236-668 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2017-12-02 | 236-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.