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
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Dec 2025
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Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-01-06 | 413-861 | 0–9 XXXwhole prefix which blocks → | BANDWIDTH.COM CLEC, LLC - MA | 990E | SPRINGFLD | MA |
| 2018-01-05 | 469-379 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | IRVING | TX |
| 2018-01-05 | 612-368 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | TWINCITIES | MN |
| 2018-01-04 | 343-937 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cornwall | — |
| 2018-01-04 | 432-227 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ODESSA | TX |
| 2018-01-04 | 438-680 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2018-01-04 | 438-778 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2018-01-04 | 438-855 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2018-01-04 | 438-866 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2018-01-04 | 626-557 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2018-01-04 | 628-652 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNFC CNTRL | CA |
| 2018-01-04 | 647-266 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2018-01-04 | 647-612 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2018-01-04 | 810-819 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLCV - MI | 543C | BRIGHTON | MI |
| 2018-01-03 | 437-970 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Toronto | — |
| 2018-01-03 | 437-971 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Toronto | — |
| 2018-01-03 | 437-972 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Toronto | — |
| 2018-01-03 | 437-973 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Toronto | — |
| 2018-01-03 | 437-974 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Toronto | — |
| 2018-01-03 | 763-292 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN |
| 2018-01-02 | 407-632 | 0–9 XXXall 10 · 4 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | KISSIMMEE | FL |
| 2018-01-02 | 437-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-01-02 | 437-388 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-01-02 | 437-488 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-01-02 | 437-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-01-02 | 437-788 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-01-02 | 548-224 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bothwell | — |
| 2018-01-02 | 548-225 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burford | — |
| 2018-01-02 | 647-263 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2018-01-02 | 647-617 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2018-01-02 | 778-666 | not yet reported which blocks → | TELUS | 8086 | Abbotsford | — |
| 2018-01-02 | 779-263 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | PLAINFIELD | IL |
| 2018-01-02 | 786-583 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | MIAMI | FL |
| 2018-01-02 | 825-215 | not yet reported which blocks → | TELUS | 8084 | Edmonton International Airport | — |
| 2018-01-02 | 825-216 | not yet reported which blocks → | TELUS | 8084 | Nisku | — |
| 2018-01-02 | 825-217 | not yet reported which blocks → | TELUS | 8084 | Smoky Lake | — |
| 2018-01-02 | 825-218 | not yet reported which blocks → | TELUS | 8084 | Sherwood Park | — |
| 2018-01-02 | 825-219 | not yet reported which blocks → | TELUS | 8084 | Slave Lake | — |
| 2018-01-02 | 825-220 | not yet reported which blocks → | TELUS | 8084 | Spruce Grove | — |
| 2018-01-02 | 917-994 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC- NY | 384C | NWYRCYZN01 | NY |
| 2017-12-29 | 470-370 | 0–9 XXXall 10 · 2 holders which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | ATLANTA NE | GA |
| 2017-12-29 | 857-329 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | BOSTON | MA |
| 2017-12-29 | 906-205 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | MARQUETTE | MI |
| 2017-12-29 | 917-781 | 0–9 XXXall 10 · 3 holders which blocks → | VOIP INNOVATIONS, LLC | 597F | NWYRCYZN01 | NY |
| 2017-12-28 | 385-867 | 0–9 XXXall 10 · 4 holders which blocks → | COMMIO, LLC | 939H | SALT LAKE | UT |
| 2017-12-28 | 401-260 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7351 | CENTREDALE | RI |
| 2017-12-28 | 516-416 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NASSAUZN05 | NY |
| 2017-12-28 | 534-202 | 0–9 XXXall 10 · 4 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | SCANDINVIA | WI |
| 2017-12-28 | 561-335 | 0–9 XXXall 10 · 5 holders which blocks → | IDT AMERICA CORP. - FL | 765A | WPALMBEACH | FL |
| 2017-12-28 | 617-404 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - MA | 892D | QUINCY | MA |
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.