NumberResearchRecent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
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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Jan 2026
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 |
|---|---|---|---|---|---|---|
| 2018-01-09 | 639-580 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-581 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-582 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-583 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-584 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-585 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-586 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-587 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-588 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-589 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-591 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 639-592 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Regina | — |
| 2018-01-09 | 647-304 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2018-01-09 | 647-619 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2018-01-09 | 952-208 | 0–9 XXXall 10 · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN |
| 2018-01-08 | 209-219 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2018-01-08 | 217-500 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | EFFINGHAM | IL |
| 2018-01-08 | 470-871 | 0–9 XXXwhole prefix which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | WINDER | GA |
| 2018-01-08 | 617-685 | 0–9 XXXall 10 · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CAMBRIDGE | MA |
| 2018-01-08 | 650-398 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN MATEO | CA |
| 2018-01-08 | 779-237 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | STREATOR | IL |
| 2018-01-08 | 909-470 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 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 | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.