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 |
|---|---|---|---|---|---|---|
| — | 601-424 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | COLUMBIA | MS |
| — | 601-425 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LAUREL | MS |
| — | 601-426 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LAUREL | MS |
| — | 601-427 | 4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | MADISON | MS |
| — | 601-428 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LAUREL | MS |
| — | 601-429 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ONVOY, LLC - MS | 719E | VICKSBURG | MS |
| — | 601-431 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | NATCHEZ | MS |
| — | 601-432 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-433 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | LAUREL | MS |
| — | 601-434 | 4XXX5XXX7XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | HATTIESBG | MS |
| — | 601-435 | 2XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | POWERTEL MEMPHIS LICENSES, INC. | 7474 | BROOKHAVEN | MS |
| — | 601-436 | 3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | PURVIS | MS |
| — | 601-437 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | PORTGIBSON | MS |
| — | 601-438 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 6916 | LAUREL | MS |
| — | 601-441 | not yet reported which blocks → | CELLULAR SOUTH, INC. | 6581 | COLUMBIA | MS |
| — | 601-442 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | NATCHEZ | MS |
| — | 601-443 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | NATCHEZ | MS |
| — | 601-444 | 6XXX7XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | COLUMBIA | MS |
| — | 601-445 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | NATCHEZ | MS |
| — | 601-446 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | NATCHEZ | MS |
| — | 601-447 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HATTIESBG | MS |
| — | 601-450 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | HATTIESBG | MS |
| — | 601-452 | 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | TAYLORSVL | MS |
| — | 601-454 | none assigned yet which blocks → | METROPCS, INC. | 5562 | JACKSON | MS |
| — | 601-456 | 0XXX2XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | VICKSBURG | MS |
| — | 601-458 | not yet reported which blocks → | SPOK, INC. | 6630 | MERIDIAN | MS |
| — | 601-459 | not yet reported which blocks → | SPOK, INC. | 6630 | HATTIESBG | MS |
| — | 601-460 | 0XXX1XXX2XXX4XXX6XXX9XXX · 3 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CLINTON | MS |
| — | 601-462 | 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | MERIDIAN | MS |
| — | 601-463 | 4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | POPLARVL | MS |
| — | 601-466 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HATTIESBG | MS |
| — | 601-469 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | FOREST | MS |
| — | 601-471 | not yet reported which blocks → | SPOK, INC. | 6630 | JACKSON | MS |
| — | 601-477 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | ELLISVILLE | MS |
| — | 601-478 | not yet reported which blocks → | SPOK, INC. | 6630 | JACKSON | MS |
| — | 601-479 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MERIDIAN | MS |
| — | 601-480 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MERIDIAN | MS |
| — | 601-481 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MERIDIAN | MS |
| — | 601-482 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MERIDIAN | MS |
| — | 601-483 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MERIDIAN | MS |
| — | 601-484 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MERIDIAN | MS |
| — | 601-485 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MERIDIAN | MS |
| — | 601-486 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MERIDIAN | MS |
| — | 601-490 | 6XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | MERIDIAN | MS |
| — | 601-497 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JACKSON | MS |
| — | 601-498 | not yet reported which blocks → | CELLULAR SOUTH, INC. | 6581 | LAUREL | MS |
| — | 601-499 | 0–9 XXXall 10 · 8 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA MS - LLC | 458C | MADISON | MS |
| — | 601-502 | 3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-503 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA MS - LLC | 458C | JACKSON | MS |
| — | 601-505 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HAZLEHURST | MS |
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.