NumberResearchRecent prefix assignments
349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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.
Most active assignees, last 30 days
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-09-02 | 840-217 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2022-09-02 | 848-334 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | METUCHEN | NJ |
| 2022-09-02 | 848-335 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - NJ | 637C | JAMESBURG | NJ |
| 2022-09-02 | 856-387 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - NJ | 637C | WOODBURY | NJ |
| 2022-09-02 | 856-416 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NJ | 118F | VINELAND | NJ |
| 2022-09-02 | 878-262 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ONVOY, LLC - PA | 547E | MARS | PA |
| 2022-09-02 | 908-215 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - NJ | 637C | ELIZABETH | NJ |
| 2022-09-02 | 908-270 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → | ONVOY, LLC - NJ | 637C | HAMPTON | NJ |
| 2022-09-02 | 908-562 | 3XXX4XXX5XXX6XXX which blocks → | ONVOY, LLC - NJ | 637C | HIGHBRIDGE | NJ |
| 2022-09-02 | 951-613 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2022-09-02 | 951-615 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUN CITY | CA |
| 2022-09-02 | 984-348 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - NC | 638E | HILLSBORGH | NC |
| 2022-09-02 | 984-468 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - NC | 638E | WAKEFOREST | NC |
| 2022-09-01 | 229-652 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - GA | 067D | TIFTON | GA |
| 2022-09-01 | 229-692 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - GA | 067D | THOMASVL | GA |
| 2022-09-01 | 240-960 | 0–9 XXXall 10 · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN4 | MD |
| 2022-09-01 | 249-422 | not yet reported which blocks → | Distributel | 082E | Bracebridge | — |
| 2022-09-01 | 249-423 | not yet reported which blocks → | Distributel | 082E | Gravenhurst | — |
| 2022-09-01 | 249-432 | not yet reported which blocks → | Distributel | 082E | Honey Harbour | — |
| 2022-09-01 | 249-435 | not yet reported which blocks → | Distributel | 082E | Huntsville | — |
| 2022-09-01 | 249-436 | not yet reported which blocks → | Distributel | 082E | Port Carling | — |
| 2022-09-01 | 249-445 | not yet reported which blocks → | Distributel | 082E | Attawapiskat | — |
| 2022-09-01 | 251-567 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks → | ONVOY, LLC - AL | 604E | MCINTOSH | AL |
| 2022-09-01 | 251-678 | 1XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | ONVOY, LLC - AL | 604E | ATMORE | AL |
| 2022-09-01 | 253-453 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - WA | 483E | TACOMAWVLY | WA |
| 2022-09-01 | 260-321 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IN | 105F | FORT WAYNE | IN |
| 2022-09-01 | 262-762 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - WI | 225C | DELAVAN | WI |
| 2022-09-01 | 302-201 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | FREDERICA | DE |
| 2022-09-01 | 318-836 | 0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 4 holders which blocks → | ONVOY, LLC - LA | 749E | JENA | LA |
| 2022-09-01 | 330-226 | 0XXX2XXX6XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | SUGARCREEK | OH |
| 2022-09-01 | 341-512 | 0–9 XXXall 10 · 3 holders which blocks → | SONIC TELECOM, LLC - CA | 433E | OKLD BKLY | CA |
| 2022-09-01 | 409-295 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - TX | 903C | GALVESTON | TX |
| 2022-09-01 | 419-926 | 0XXX1XXX9XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | GREENWICH | OH |
| 2022-09-01 | 425-552 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - WA | 483E | SILVERLAKE | WA |
| 2022-09-01 | 430-413 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - TX | 903C | GREENVILLE | TX |
| 2022-09-01 | 437-428 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2022-09-01 | 502-692 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - KY | 896E | SHELBYVL | KY |
| 2022-09-01 | 561-407 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | DELRAY BCH | FL |
| 2022-09-01 | 573-850 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - MO | 093F | POPLAR BLF | MO |
| 2022-09-01 | 603-619 | 0–9 XXXall 10 · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | LACONIA | NH |
| 2022-09-01 | 623-343 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 681-683 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - WV | 449F | ELKINS | WV |
| 2022-09-01 | 727-761 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - FL | 937C | CLEARWATER | FL |
| 2022-09-01 | 762-372 | 0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → | ONVOY, LLC - GA | 067D | SUMMERVL | GA |
| 2022-09-01 | 762-472 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - GA | 067D | LA FAYETTE | GA |
| 2022-09-01 | 807-200 | not yet reported which blocks → | Distributel | 082E | Clearwater Bay | — |
| 2022-09-01 | 807-201 | not yet reported which blocks → | Distributel | 082E | McKenzie Portage | — |
| 2022-09-01 | 807-203 | not yet reported which blocks → | Distributel | 082E | Oxdrift | — |
| 2022-09-01 | 807-205 | not yet reported which blocks → | Distributel | 082E | Perrault Falls | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.