NumberResearchRecent 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.
Most active assignees, last 30 days
New assignments by month
Sep 2026
Aug 2026
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May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-04-26 | 639-672 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Luseland | — |
| 2017-04-26 | 762-244 | 0–9 XXXall 10 · 6 holders which blocks → | ETC COMMUNICATIONS, L.L.C. - GA | 205D | COMMERCE | GA |
| 2017-04-26 | 878-379 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WAYNESBURG | PA |
| 2017-04-25 | 219-800 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - IN | 097D | E CHICAGO | IN |
| 2017-04-25 | 270-553 | 0XXX9XXX · 2 holders which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LONDON | 9691 | BARDWELL | KY |
| 2017-04-25 | 321-878 | 0–9 XXXall 10 · 6 holders which blocks → | COMMIO, LLC | 939H | COCOABEACH | FL |
| 2017-04-25 | 409-900 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - TX | 903C | LUMBERTON | TX |
| 2017-04-25 | 417-404 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - MO | 093F | PIERCECITY | MO |
| 2017-04-25 | 417-609 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - MO | 093F | WEBB CITY | MO |
| 2017-04-25 | 814-526 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | ONVOY, LLC - PA | 547E | HAWTHORN | PA |
| 2017-04-25 | 928-800 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - AZ | 630E | PRESCOTT | AZ |
| 2017-04-24 | 432-200 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | COYANOSA | TX |
| 2017-04-24 | 843-666 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - SC | 548E | CHARLESTON | SC |
| 2017-04-21 | 228-900 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - MS | 719E | TANNERWLMS | MS |
| 2017-04-21 | 657-354 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS NETWORKS, LLC | 899D | FULLERTON | CA |
| 2017-04-21 | 956-446 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - TX | 903C | SULLIVANCY | TX |
| 2017-04-20 | 231-581 | none assigned yet which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | ALBA | MI |
| 2017-04-20 | 249-979 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Sudbury | — |
| 2017-04-20 | 249-989 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Barrie | — |
| 2017-04-20 | 437-773 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2017-04-20 | 437-775 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2017-04-20 | 437-776 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2017-04-20 | 437-778 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2017-04-20 | 437-779 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2017-04-20 | 437-990 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2017-04-20 | 438-979 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2017-04-20 | 602-698 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2017-04-20 | 646-909 | 0–9 XXXwhole prefix which blocks → | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
| 2017-04-20 | 762-400 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - GA | 067D | ATHENS | GA |
| 2017-04-20 | 803-676 | 0–9 XXXall 10 · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BAMBERG | SC |
| 2017-04-20 | 873-923 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Drummondville | — |
| 2017-04-20 | 912-800 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - GA | 067D | SAVANNAH | GA |
| 2017-04-19 | 307-785 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - WY | 450F | WBLLFOURCH | WY |
| 2017-04-19 | 319-251 | 0–9 XXXall 10 · 7 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | ANAMOSA | IA |
| 2017-04-19 | 407-635 | 0–9 XXXall 10 · 4 holders which blocks → | BHN IP ENABLED SERVICES, LLC | 045L | ORLANDO | FL |
| 2017-04-19 | 409-235 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - TX | 903C | BURKEVILLE | TX |
| 2017-04-19 | 470-354 | 0–9 XXXall 10 · 6 holders which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | GAINESVL | GA |
| 2017-04-19 | 470-556 | 0–9 XXXwhole prefix which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | WINDER | GA |
| 2017-04-19 | 639-283 | not yet reported which blocks → | Bell Mobility | 6574 | Wynyard | — |
| 2017-04-19 | 639-284 | not yet reported which blocks → | Bell Mobility | 6574 | Saltcoats | — |
| 2017-04-19 | 639-285 | not yet reported which blocks → | Bell Mobility | 6574 | Langenburg | — |
| 2017-04-19 | 639-286 | not yet reported which blocks → | Bell Mobility | 6574 | Preeceville | — |
| 2017-04-19 | 639-287 | not yet reported which blocks → | Bell Mobility | 6574 | Kamsack | — |
| 2017-04-19 | 639-288 | not yet reported which blocks → | Bell Mobility | 6574 | Foam Lake | — |
| 2017-04-19 | 639-289 | not yet reported which blocks → | Bell Mobility | 6574 | Esterhazy | — |
| 2017-04-19 | 639-290 | not yet reported which blocks → | Bell Mobility | 6574 | Canora | — |
| 2017-04-19 | 639-291 | not yet reported which blocks → | Bell Mobility | 6574 | Melville | — |
| 2017-04-19 | 639-292 | not yet reported which blocks → | Bell Mobility | 6574 | Calder | — |
| 2017-04-19 | 641-531 | 0–9 XXXall 10 · 7 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | IOWA FALLS | IA |
| 2017-04-19 | 701-937 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - ND | 452F | NOMORRISTN | ND |
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.