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 |
|---|---|---|---|---|---|---|
| 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 | — |
| 2019-08-16 | 873-460 | not yet reported which blocks → | Videotron Ltd. | 8306 | Woburn | — |
| 2019-08-16 | 873-461 | not yet reported which blocks → | Videotron Ltd. | 8306 | Frontenac | — |
| 2019-08-16 | 970-647 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - CO | 026D | JULESBURG | CO |
| 2019-08-16 | 970-651 | 2XXX6XXX7XXX · 2 holders which blocks → | ONVOY, LLC - CO | 026D | MAYBELL | CO |
| 2019-08-16 | 970-696 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - CO | 026D | RIDGWAY | CO |
| 2019-08-16 | 970-709 | 0XXX1XXX2XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → | ONVOY, LLC - CO | 026D | GRAND LAKE | CO |
| 2019-08-16 | 970-741 | 0XXX4XXX5XXX7XXX · 3 holders which blocks → | ONVOY, LLC - CO | 026D | MEEKER | CO |
| 2019-08-16 | 970-849 | 1XXX2XXX4XXX5XXX7XXX9XXX · 3 holders which blocks → | ONVOY, LLC - CO | 026D | OURAY | CO |
| 2019-08-15 | 431-872 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Elm Creek | — |
| 2019-08-15 | 431-875 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Oak River | — |
| 2019-08-15 | 463-225 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IN | 105F | WESTNEWTON | IN |
| 2019-08-15 | 715-907 | 0–9 XXXall 10 · 7 holders which blocks → | TDS METROCOM, LLC | 520K | WAUSAU | WI |
| 2019-08-14 | 223-220 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - PA | 547E | CHAMBERSBG | PA |
| 2019-08-14 | 269-257 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | STURGIS | MI |
| 2019-08-14 | 332-214 | 0–9 XXXall 10 · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2019-08-14 | 360-916 | 0–9 XXXall 10 · 6 holders which blocks → | METROPCS, INC. | 5562 | LONGVIEW | WA |
| 2019-08-14 | 404-544 | 0–9 XXXwhole prefix which blocks → | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA | GA |
| 2019-08-14 | 431-873 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | St. Claude | — |
| 2019-08-14 | 431-874 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Minto | — |
| 2019-08-14 | 431-876 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Wawanesa | — |
| 2019-08-14 | 438-272 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2019-08-14 | 469-833 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - TX | 903C | PLANO | TX |
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.