Recent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
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 |
|---|---|---|---|---|---|---|
| 2017-11-15 | 346-284 | 0–9 XXXall 10 · 2 holders which blocks → | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2017-11-15 | 431-478 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Winnipeg | — |
| 2017-11-15 | 639-877 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Weyburn | — |
| 2017-11-15 | 639-878 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | North Battleford | — |
| 2017-11-15 | 639-884 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Yorkton | — |
| 2017-11-15 | 639-885 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Macklin | — |
| 2017-11-15 | 774-356 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRAMINGHAM | MA |
| 2017-11-15 | 778-974 | not yet reported which blocks → | Distributel | 081E | Victoria | — |
| 2017-11-14 | 224-273 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | ARLIGTNHTS | IL |
| 2017-11-14 | 309-317 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCKISLAND | IL |
| 2017-11-14 | 480-795 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | PHOENIX | AZ |
| 2017-11-14 | 530-599 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - CA | 649C | MARYSVILLE | CA |
| 2017-11-14 | 551-269 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | RAMSEY | NJ |
| 2017-11-14 | 587-634 | not yet reported which blocks → | Bell West Inc. | 2933 | Grimshaw | — |
| 2017-11-14 | 587-636 | not yet reported which blocks → | Bell West Inc. | 2933 | Morinville | — |
| 2017-11-14 | 587-637 | not yet reported which blocks → | Bell West Inc. | 2933 | Nanton | — |
| 2017-11-14 | 587-638 | not yet reported which blocks → | Bell West Inc. | 2933 | Picture Butte | — |
| 2017-11-14 | 587-639 | not yet reported which blocks → | Bell West Inc. | 2933 | Redwater | — |
| 2017-11-14 | 605-970 | 5XXX6XXX7XXX8XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARTIN | SD |
| 2017-11-14 | 716-399 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | TONAWANDA | NY |
| 2017-11-14 | 720-768 | 0–9 XXXall 10 · 3 holders which blocks → | COMMIO, LLC | 022H | DENVER | CO |
| 2017-11-14 | 778-947 | not yet reported which blocks → | TELUS | 8086 | Whistler | — |
| 2017-11-13 | 205-684 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | LEEDS | AL |
| 2017-11-13 | 205-691 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | BUTLER | AL |
| 2017-11-13 | 218-653 | 1XXX which blocks → | GARDEN VALLEY TELEPHONE COMPANY - MN | 105J | THIFRIVFLS | MN |
| 2017-11-13 | 236-340 | not yet reported which blocks → | Bell West Inc. | 2933 | Armstrong | — |
| 2017-11-13 | 236-341 | not yet reported which blocks → | Bell West Inc. | 2933 | Chase | — |
| 2017-11-13 | 236-342 | not yet reported which blocks → | Bell West Inc. | 2933 | Lake Cowichan | — |
| 2017-11-13 | 236-343 | not yet reported which blocks → | Bell West Inc. | 2933 | Logan Lake | — |
| 2017-11-13 | 236-344 | not yet reported which blocks → | Bell West Inc. | 2933 | Lumby | — |
| 2017-11-13 | 236-345 | not yet reported which blocks → | Bell West Inc. | 2933 | Pemberton | — |
| 2017-11-13 | 236-346 | not yet reported which blocks → | Bell West Inc. | 2933 | Sicamous | — |
| 2017-11-13 | 236-347 | not yet reported which blocks → | Bell West Inc. | 2933 | Tofino | — |
| 2017-11-13 | 236-348 | not yet reported which blocks → | Bell West Inc. | 2933 | Westsyde | — |
| 2017-11-13 | 325-230 | 0–9 XXXall 10 · 5 holders which blocks → | VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW | 1181 | MERKEL | TX |
| 2017-11-13 | 407-338 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS NETWORKS, LLC | 899D | KISSIMMEE | FL |
| 2017-11-13 | 587-628 | not yet reported which blocks → | Bell West Inc. | 2933 | Acme | — |
| 2017-11-13 | 587-629 | not yet reported which blocks → | Bell West Inc. | 2933 | Devon | — |
| 2017-11-13 | 587-630 | not yet reported which blocks → | Bell West Inc. | 2933 | Didsbury | — |
| 2017-11-13 | 587-631 | not yet reported which blocks → | Bell West Inc. | 2933 | Forestburg | — |
| 2017-11-13 | 587-632 | not yet reported which blocks → | Bell West Inc. | 2933 | Fort Macleod | — |
| 2017-11-13 | 587-633 | not yet reported which blocks → | Bell West Inc. | 2933 | Gleichen | — |
| 2017-11-13 | 803-710 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | JOHNSTON | SC |
| 2017-11-13 | 806-574 | 1XXX9XXX · 2 holders which blocks → | VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW | 1181 | FRITCH | TX |
| 2017-11-13 | 806-581 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → | VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW | 1163 | IDALOU | TX |
| 2017-11-10 | 202-860 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - DC | 850D | WSHNGTNZN1 | DC |
| 2017-11-10 | 209-897 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VALLEY SPG | CA |
| 2017-11-10 | 253-300 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - WA | 483E | TACOMA | WA |
| 2017-11-10 | 470-773 | 0–9 XXXall 10 · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - GA | 8392 | ATLANTA | GA |
| 2017-11-10 | 707-898 | 0–9 XXXall 10 · 7 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VACAVILLE | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.