NumberResearchRecent prefix assignments
338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026
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 |
|---|---|---|---|---|---|---|
| 2022-05-11 | 912-648 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | STATESBORO | GA |
| 2022-05-11 | 929-623 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2022-05-11 | 936-331 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | CONROE | TX |
| 2022-05-10 | 263-500 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Pointe-Claire | — |
| 2022-05-10 | 263-600 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Roxboro | — |
| 2022-05-10 | 263-700 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ste-Genevieve | — |
| 2022-05-10 | 354-200 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Boucherville | — |
| 2022-05-10 | 354-222 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Chambly | — |
| 2022-05-10 | 354-300 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Huntingdon | — |
| 2022-05-10 | 354-333 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Longueuil | — |
| 2022-05-10 | 354-400 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ste-Marthe | — |
| 2022-05-10 | 354-444 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Valleyfield | — |
| 2022-05-10 | 354-500 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Hudson | — |
| 2022-05-10 | 354-600 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Coteau-Landing | — |
| 2022-05-10 | 354-666 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Coteau-du-Lac | — |
| 2022-05-10 | 354-700 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Rigaud | — |
| 2022-05-10 | 354-777 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Riviere-Beaudette | — |
| 2022-05-10 | 354-800 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Laprairie | — |
| 2022-05-10 | 354-888 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St-Lambert | — |
| 2022-05-10 | 354-900 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ste-Justine-de-Newton | — |
| 2022-05-10 | 424-855 | 0XXX1XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | AVALON | CA |
| 2022-05-10 | 431-417 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Wawanesa | — |
| 2022-05-10 | 480-879 | 0–9 XXXall 10 · 3 holders which blocks → | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PHOENIX | AZ |
| 2022-05-10 | 508-204 | 0–9 XXXall 10 · 5 holders which blocks → | COMMIO, LLC | 939H | NEWBEDFORD | MA |
| 2022-05-10 | 629-276 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - TN | 525E | NASHVILLE | TN |
| 2022-05-10 | 657-579 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | ORANGE | CA |
| 2022-05-10 | 678-968 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | ADAIRSVL | GA |
| 2022-05-10 | 719-656 | 0XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LEADVILLE | CO |
| 2022-05-10 | 770-215 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | GAINESVL | GA |
| 2022-05-10 | 770-264 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | CARTERSVL | GA |
| 2022-05-10 | 770-525 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | VILLA RICA | GA |
| 2022-05-10 | 770-758 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | JACKSON | GA |
| 2022-05-10 | 770-759 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | BARNESVL | GA |
| 2022-05-10 | 771-444 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | WSHNGTNZN1 | DC |
| 2022-05-10 | 848-327 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | METUCHEN | NJ |
| 2022-05-10 | 858-838 | 0–9 XXXall 10 · 8 holders which blocks → | FRACTEL, LLC | 965H | CAMPO | CA |
| 2022-05-10 | 912-636 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DOUGLAS | GA |
| 2022-05-10 | 928-375 | 0XXX1XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALOME | AZ |
| 2022-05-09 | 209-935 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - CA | 649C | DOS PALOS | CA |
| 2022-05-09 | 209-936 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2022-05-09 | 263-200 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ile-Perrot | — |
| 2022-05-09 | 263-222 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Montreal | — |
| 2022-05-09 | 263-300 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Lachine | — |
| 2022-05-09 | 305-980 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | KEYS | FL |
| 2022-05-09 | 314-350 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - MO | 093F | KIRKWOOD | MO |
| 2022-05-09 | 440-849 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - OH | 464C | LORAIN | OH |
| 2022-05-09 | 440-851 | 0XXX1XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | CSC VOICE, LLC | 612K | BURTON | OH |
| 2022-05-09 | 513-955 | 0–9 XXXall 10 · 4 holders which blocks → | BARR TELL USA | 907J | CINCINNATI | OH |
| 2022-05-09 | 516-923 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC- NY | 384C | NASSAUZN02 | NY |
| 2022-05-09 | 561-857 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DELRAY BCH | FL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.