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 |
|---|---|---|---|---|---|---|
| 2019-08-21 | 380-207 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - OH | 464C | REYNOLDSBG | OH |
| 2019-08-21 | 438-278 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2019-08-21 | 438-279 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2019-08-21 | 469-679 | 0–9 XXXwhole prefix which blocks → | T-MOBILE USA, INC. | 6529 | ENNIS | TX |
| 2019-08-21 | 469-686 | 0–9 XXXwhole prefix which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2019-08-21 | 559-414 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | CORCORAN | CA |
| 2019-08-21 | 639-477 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Regina | — |
| 2019-08-21 | 845-749 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SAUGERTIES | NY |
| 2019-08-21 | 845-755 | 1XXX which blocks → | EXIANT COMMUNICATIONS LLC | 114J | POUGHKEPSI | NY |
| 2019-08-20 | 206-537 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BAINBDG IS | WA |
| 2019-08-20 | 239-296 | 0–9 XXXall 10 · 5 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | NAPLES | FL |
| 2019-08-20 | 314-697 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2019-08-20 | 406-418 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - MT | 453F | COOKE CITY | MT |
| 2019-08-20 | 406-501 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - MT | 453F | WHITEHALL | MT |
| 2019-08-20 | 406-804 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - MT | 453F | GARDINER | MT |
| 2019-08-20 | 484-820 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | CATASAUQUA | PA |
| 2019-08-20 | 507-608 | 0XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - MN | 184D | HERON LAKE | MN |
| 2019-08-20 | 507-652 | 0XXX1XXX3XXX4XXX5XXX9XXX · 5 holders which blocks → | ONVOY, LLC - MN | 184D | KELLOGG | MN |
| 2019-08-20 | 507-705 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | ONVOY, LLC - MN | 184D | LAMBERTON | MN |
| 2019-08-20 | 507-707 | 0XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | ONVOY, LLC - MN | 184D | LEOTA | MN |
| 2019-08-20 | 507-708 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - MN | 184D | LEWISVILLE | MN |
| 2019-08-20 | 507-709 | 0XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | ONVOY, LLC - MN | 184D | REDWOODFLS | MN |
| 2019-08-20 | 507-713 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | ONVOY, LLC - MN | 184D | WILMONT | MN |
| 2019-08-20 | 571-621 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | MANASSAS | VA |
| 2019-08-20 | 651-349 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | ONVOY, LLC - MN | 184D | WABASHA | MN |
| 2019-08-20 | 814-478 | 0–9 XXXall 10 · 6 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | EBENSBURG | PA |
| 2019-08-20 | 904-532 | 0–9 XXXwhole prefix which blocks → | POWERTEL JACKSONVILLE LICENSES, INC. | 7472 | JACKSONVL | FL |
| 2019-08-19 | 346-390 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | BARKER | TX |
| 2019-08-19 | 346-391 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | SUGAR LAND | TX |
| 2019-08-19 | 346-392 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | SATSUMA | TX |
| 2019-08-19 | 346-393 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | STAFFORD | TX |
| 2019-08-19 | 346-394 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | CHANNELVW | TX |
| 2019-08-19 | 480-637 | 0–9 XXXall 10 · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | PHOENIX | AZ |
| 2019-08-19 | 616-352 | 0–9 XXXwhole prefix which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRAND RPDS | MI |
| 2019-08-19 | 669-296 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2019-08-19 | 773-900 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | CHICGOZN03 | IL |
| 2019-08-19 | 878-879 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - PA | 547E | NEWKNSNGTN | PA |
| 2019-08-19 | 949-615 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | TRABUCO | CA |
| 2019-08-16 | 234-432 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - OH | 464C | AURORA | OH |
| 2019-08-16 | 417-444 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | SPRINGFLD | MO |
| 2019-08-16 | 438-273 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2019-08-16 | 667-270 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | ANNAPOLIS | MD |
| 2019-08-16 | 719-416 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - CO | 026D | BRANSON | CO |
| 2019-08-16 | 719-437 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - CO | 026D | PEYTON | CO |
| 2019-08-16 | 719-515 | 3XXX4XXX5XXX7XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CO | 026D | LA JARA | CO |
| 2019-08-16 | 720-664 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - CO | 026D | ALLNSPKLYN | CO |
| 2019-08-16 | 720-679 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - CO | 026D | GEORGETOWN | CO |
| 2019-08-16 | 720-713 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2019-08-16 | 743-233 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NC | 998E | SUMMERFLD | NC |
| 2019-08-16 | 825-515 | not yet reported which blocks → | TELUS | 8084 | Wabasca | — |
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.