Recent prefix assignments
334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026
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 |
|---|---|---|---|---|---|---|
| 2020-07-28 | 458-946 | 0XXX1XXX3XXX4XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | RIDDLE | OR |
| 2020-07-28 | 469-851 | 0–9 XXXall 10 · 4 holders which blocks → | NUSO, LLC | 478J | DALLAS | TX |
| 2020-07-28 | 470-730 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | ADAIRSVL | GA |
| 2020-07-28 | 480-698 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2020-07-28 | 619-689 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CAJON | CA |
| 2020-07-28 | 629-242 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | NASHVILLE | TN |
| 2020-07-28 | 639-301 | not yet reported which blocks → | SaskTel Mobility | 9868 | Weyburn | — |
| 2020-07-28 | 639-302 | not yet reported which blocks → | SaskTel Mobility | 9868 | Estevan | — |
| 2020-07-28 | 639-303 | not yet reported which blocks → | SaskTel Mobility | 9868 | Yorkton | — |
| 2020-07-28 | 639-304 | not yet reported which blocks → | SaskTel Mobility | 9868 | Moose Jaw | — |
| 2020-07-28 | 639-417 | not yet reported which blocks → | SaskTel | 8091 | North Battleford | — |
| 2020-07-28 | 639-650 | not yet reported which blocks → | SaskTel | 8091 | Estevan | — |
| 2020-07-28 | 639-651 | not yet reported which blocks → | SaskTel | 8091 | Moose Jaw | — |
| 2020-07-28 | 639-780 | not yet reported which blocks → | SaskTel | 8091 | Swift Current | — |
| 2020-07-28 | 639-807 | not yet reported which blocks → | SaskTel | 8091 | Lloydminster | — |
| 2020-07-28 | 639-823 | not yet reported which blocks → | SaskTel | 8091 | Yorkton | — |
| 2020-07-28 | 639-850 | not yet reported which blocks → | SaskTel | 8091 | Weyburn | — |
| 2020-07-28 | 639-964 | not yet reported which blocks → | SaskTel | 8091 | Prince Albert | — |
| 2020-07-28 | 657-447 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WESTMINSTR | CA |
| 2020-07-28 | 661-503 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | PLDL PLDL | CA |
| 2020-07-28 | 779-275 | 0–9 XXXall 10 · 5 holders which blocks → | STRATUS NETWORKS | 495J | ROCKFORD | IL |
| 2020-07-28 | 779-276 | 0–9 XXXall 10 · 4 holders which blocks → | STRATUS NETWORKS | 495J | DE KALB | IL |
| 2020-07-28 | 839-400 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | FORT MILL | SC |
| 2020-07-28 | 909-817 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2020-07-28 | 909-832 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2020-07-28 | 928-391 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | KINGMAN | AZ |
| 2020-07-28 | 929-551 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN07 | NY |
| 2020-07-28 | 971-842 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | ST HELENS | OR |
| 2020-07-28 | 971-977 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | TILLAMOOK | OR |
| 2020-07-28 | 984-345 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | CARY | NC |
| 2020-07-27 | 252-855 | 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | RICHSQUARE | NC |
| 2020-07-27 | 502-754 | 0–9 XXXall 10 · 2 holders which blocks → | HD CARRIER LLC | 321J | LOUISVILLE | KY |
| 2020-07-27 | 571-877 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | LORTONMTRO | VA |
| 2020-07-27 | 636-335 | 0–9 XXXwhole prefix which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | FENTON | MO |
| 2020-07-27 | 743-300 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | DANBURY | NC |
| 2020-07-27 | 743-356 | 0XXX2XXX3XXX4XXX7XXX9XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | DENTON | NC |
| 2020-07-27 | 743-400 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | EDEN | NC |
| 2020-07-27 | 743-600 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | HIGH POINT | NC |
| 2020-07-27 | 762-253 | 0–9 XXXall 10 · 6 holders which blocks → | HD CARRIER LLC | 321J | AUGUSTA | GA |
| 2020-07-27 | 779-345 | 0XXX1XXX2XXX3XXX5XXX6XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | BYRON | IL |
| 2020-07-27 | 779-677 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | FREEPORT | IL |
| 2020-07-27 | 779-799 | 0XXX1XXX2XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | COLETA | IL |
| 2020-07-27 | 779-922 | 0XXX1XXX2XXX4XXX5XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | HOOPPOLE | IL |
| 2020-07-27 | 779-933 | 0XXX1XXX2XXX3XXX7XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | HINCKLEY | IL |
| 2020-07-27 | 878-251 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - PA | 547E | BLACK LICK | PA |
| 2020-07-27 | 912-461 | 0–9 XXXall 10 · 3 holders which blocks → | HD CARRIER LLC | 321J | SAVANNAH | GA |
| 2020-07-27 | 947-225 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | HOLLY | MI |
| 2020-07-27 | 984-977 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | SANFORD | NC |
| 2020-07-24 | 225-563 | 2XXX3XXX6XXX7XXX8XXX9XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | INNIS | LA |
| 2020-07-24 | 239-328 | 0–9 XXXall 10 · 3 holders which blocks → | HD CARRIER LLC | 321J | FORT MYERS | FL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.