NumberResearchRecent prefix assignments
341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026
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
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2004-12-06 | 204-220 | not yet reported which blocks → | Bell West Inc. | 2933 | Winnipeg | — |
| 2004-12-06 | 250-663 | not yet reported which blocks → | Bell West Inc. | 2933 | Fort St. John | — |
| 2004-12-06 | 416-514 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| 2004-12-06 | 418-381 | not yet reported which blocks → | Bell Canada | 984C | Sainte-Marie-de-Beauce | — |
| 2004-12-06 | 517-330 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | LITCHFIELD | MI |
| 2004-12-06 | 541-460 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | MADRAS | OR |
| 2004-12-06 | 601-828 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | ROXIE | MS |
| 2004-12-06 | 604-393 | not yet reported which blocks → | Bell West Inc. | 2933 | Chilliwack | — |
| 2004-12-06 | 616-205 | 0–9 XXXall 10 · 8 holders which blocks → | TELNET WORLDWIDE, INC. | 817J | SPARTA | MI |
| 2004-12-06 | 616-757 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | TELNET WORLDWIDE, INC. | 817J | BORCULO | MI |
| 2004-12-06 | 616-986 | 0XXX1XXX5XXX6XXX8XXX · 5 holders which blocks → | TELNET WORLDWIDE, INC. | 817J | ALLENDALE | MI |
| 2004-12-06 | 778-338 | not yet reported which blocks → | Bell West Inc. | 2933 | North Vancouver | — |
| 2004-12-06 | 810-988 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | MONTROSE | MI |
| 2004-12-06 | 870-615 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MT VIEW | AR |
| 2004-12-06 | 906-244 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | CEDARVILLE | MI |
| 2004-12-06 | 906-252 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | MANISTIQUE | MI |
| 2004-12-06 | 906-434 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | RUDYARD | MI |
| 2004-12-06 | 906-710 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | DE TOUR | MI |
| 2004-12-06 | 906-717 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | PICKFORD | MI |
| 2004-12-06 | 956-525 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BROWNSVL | TX |
| 2004-12-06 | 989-456 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | OMER | MI |
| 2004-12-06 | 989-532 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | AU GRES | MI |
| 2004-12-06 | 989-626 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | CHESANING | MI |
| 2004-12-05 | 217-215 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | RANTOUL | IL |
| 2004-12-03 | 239-424 | 0–9 XXXall 10 · 6 holders which blocks → | CENTURYLINK OF FLORIDA, INC. (UNITED) | 0341 | CAPE CORAL | FL |
| 2004-12-03 | 250-200 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Revelstoke | — |
| 2004-12-03 | 250-588 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Victoria | — |
| 2004-12-03 | 418-220 | not yet reported which blocks → | Bell Canada | 984C | Saint-Georges-de-Beauce | — |
| 2004-12-03 | 418-280 | not yet reported which blocks → | Bell Canada | 984C | Baie-Comeau (Hauterive) | — |
| 2004-12-03 | 418-734 | not yet reported which blocks → | Bell Canada | 984C | Rimouski | — |
| 2004-12-03 | 418-921 | not yet reported which blocks → | Bell Canada | 984C | Baie-Comeau | — |
| 2004-12-03 | 423-215 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | ONEIDA | TN |
| 2004-12-03 | 605-454 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARTIN | SD |
| 2004-12-03 | 701-571 | not yet reported which blocks → | SAGEBRUSH CELLULAR, INC. | 443B | WILLISTON | ND |
| 2004-12-03 | 787-560 | 0–9 XXXall 10 · 2 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2004-12-03 | 787-619 | 0–9 XXXwhole prefix which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2004-12-02 | 334-400 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | DALEVILLE | AL |
| 2004-12-02 | 413-301 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2004-12-02 | 418-304 | not yet reported which blocks → | Videotron Ltd. | 8306 | Levis | — |
| 2004-12-02 | 418-305 | not yet reported which blocks → | Videotron Ltd. | 8306 | Thetford Mines | — |
| 2004-12-02 | 423-765 | 0–9 XXXall 10 · 3 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | KINGSPORT | TN |
| 2004-12-02 | 450-551 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sorel | — |
| 2004-12-02 | 778-829 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Vancouver | — |
| 2004-12-02 | 931-539 | 0–9 XXXwhole prefix which blocks → | POWERTEL NASHVILLE LICENSES, INC. | 7476 | BAXTER | TN |
| 2004-12-01 | 225-610 | 0–9 XXXall 10 · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | BATONROUGE | LA |
| 2004-12-01 | 252-764 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | SWNSBRWCAR | NC |
| 2004-12-01 | 256-300 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | CENTRE | AL |
| 2004-12-01 | 330-642 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | ORRVILLE | OH |
| 2004-12-01 | 336-899 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | HIGH POINT | NC |
| 2004-12-01 | 480-266 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.