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 |
|---|---|---|---|---|---|---|
| 2022-05-09 | 575-750 | 0XXX7XXX · 2 holders which blocks → | ONVOY, LLC - NM | 206F | CLOUDCROFT | NM |
| 2022-05-09 | 608-805 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - WI | 225C | REEDSBURG | WI |
| 2022-05-09 | 618-848 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC | 224C | CENTRALIA | IL |
| 2022-05-09 | 618-849 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HERRIN | IL |
| 2022-05-09 | 707-818 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - CA | 649C | VACAVILLE | CA |
| 2022-05-09 | 716-613 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMESTOWN | NY |
| 2022-05-09 | 716-637 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC- NY | 384C | JAMESTOWN | NY |
| 2022-05-09 | 786-849 | 0–9 XXXwhole prefix which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | MIAMI | FL |
| 2022-05-09 | 786-852 | 0–9 XXXwhole prefix which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | MIAMI | FL |
| 2022-05-06 | 236-781 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2022-05-06 | 365-434 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-05-06 | 437-651 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2022-05-06 | 480-903 | 0–9 XXXall 10 · 2 holders which blocks → | GLOBAL NET COMMUNICATIONS, INC. | 969J | PHOENIX | AZ |
| 2022-05-06 | 657-583 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GARDEN GRV | CA |
| 2022-05-06 | 662-916 | 0XXX6XXX · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA MS - LLC | 458C | LELAND | MS |
| 2022-05-06 | 669-312 | 0–9 XXXall 10 · 6 holders which blocks → | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2022-05-06 | 770-501 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | GRANTVILLE | GA |
| 2022-05-06 | 770-762 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | CUMMING | GA |
| 2022-05-06 | 825-545 | not yet reported which blocks → | Bell Mobility | 6574 | Edmonton | — |
| 2022-05-06 | 825-741 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2022-05-06 | 878-268 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | IMPERIAL | PA |
| 2022-05-06 | 937-943 | 0XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | CSC VOICE, LLC | 612K | TROY | OH |
| 2022-05-06 | 956-327 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DOLORES | TX |
| 2022-05-05 | 301-410 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN6 | MD |
| 2022-05-05 | 347-953 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | NWYRCYZN10 | NY |
| 2022-05-05 | 367-897 | not yet reported which blocks → | Bell Mobility | 6574 | Chicoutimi | — |
| 2022-05-05 | 438-572 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2022-05-05 | 581-894 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2022-05-05 | 703-977 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2022-05-05 | 807-394 | not yet reported which blocks → | Bell Mobility | 6574 | Kenora | — |
| 2022-05-04 | 214-487 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | DALLAS | TX |
| 2022-05-04 | 214-807 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - TX | 903C | IRVING | TX |
| 2022-05-04 | 214-894 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - TX | 903C | LEWISVILLE | TX |
| 2022-05-04 | 301-781 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN4 | MD |
| 2022-05-04 | 331-285 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | NAPERVILLE | IL |
| 2022-05-04 | 380-246 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - OH | 464C | WESTERVL | OH |
| 2022-05-04 | 380-248 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - OH | 464C | REYNOLDSBG | OH |
| 2022-05-04 | 380-249 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | COLUMBUS | OH |
| 2022-05-04 | 434-318 | 0–9 XXXwhole prefix which blocks → | BANDWIDTH.COM CLEC, LLC - VA | 079F | LYNCHBURG | VA |
| 2022-05-04 | 447-235 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARSHALL | IL |
| 2022-05-04 | 468-500 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Deauville | — |
| 2022-05-04 | 468-666 | not yet reported which blocks → | IXICA Communications Inc. | 812H | East Hereford | — |
| 2022-05-04 | 468-688 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Weedon | — |
| 2022-05-04 | 468-700 | not yet reported which blocks → | IXICA Communications Inc. | 812H | La Patrie | — |
| 2022-05-04 | 468-777 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Lac-Drolet | — |
| 2022-05-04 | 468-800 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Richmond | — |
| 2022-05-04 | 468-888 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Sherbrooke | — |
| 2022-05-04 | 468-900 | not yet reported which blocks → | IXICA Communications Inc. | 812H | South Durham | — |
| 2022-05-04 | 468-999 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Stoke | — |
| 2022-05-04 | 512-881 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - TX | 903C | LEANDER | TX |
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.