NumberResearchRecent prefix assignments
334 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
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May 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2005-06-29 | 705-477 | not yet reported which blocks → | Bell Mobility | 6574 | North Bay | — |
| 2005-06-29 | 705-919 | not yet reported which blocks → | Bell Mobility | 6574 | Sudbury | — |
| 2005-06-29 | 705-931 | not yet reported which blocks → | Bell Mobility | 6574 | Peterborough | — |
| 2005-06-29 | 778-835 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2005-06-29 | 780-262 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Whitecourt | — |
| 2005-06-29 | 780-264 | not yet reported which blocks → | Bell Mobility | 6574 | Edmonton | — |
| 2005-06-29 | 785-441 | not yet reported which blocks → | RURAL TEL. SERVICE CO., INC. DBA NEX-TECH | 1826 | RUSSELL | KS |
| 2005-06-29 | 819-212 | not yet reported which blocks → | Bell Mobility | 6574 | Sherbrooke | — |
| 2005-06-29 | 845-806 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | MONROE | NY |
| 2005-06-29 | 905-499 | not yet reported which blocks → | Primus Telecommunications Canada Inc. | 201A | Brampton | — |
| 2005-06-29 | 905-614 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| 2005-06-29 | 905-766 | not yet reported which blocks → | Primus Telecommunications Canada Inc. | 201A | Cooksville | — |
| 2005-06-29 | 937-733 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | EATON | OH |
| 2005-06-28 | 201-546 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2005-06-28 | 410-470 | 0–9 XXXwhole prefix which blocks → | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2005-06-28 | 410-501 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | ARBUTUS | MD |
| 2005-06-28 | 613-982 | not yet reported which blocks → | Globalstar | 6996 | Smiths Falls | — |
| 2005-06-28 | 619-565 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2005-06-28 | 705-370 | not yet reported which blocks → | ExaTEL Inc. | 3147 | Little Current | — |
| 2005-06-28 | 705-640 | not yet reported which blocks → | ExaTEL Inc. | 3147 | Bracebridge | — |
| 2005-06-28 | 705-850 | not yet reported which blocks → | ExaTEL Inc. | 3147 | Wawa | — |
| 2005-06-28 | 705-860 | not yet reported which blocks → | ExaTEL Inc. | 3147 | Chapleau | — |
| 2005-06-27 | 210-423 | 0–9 XXXwhole prefix which blocks → | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2005-06-24 | 218-655 | 0XXX8XXX · 2 holders which blocks → | ONVOY, LLC - MN | 184D | CLOQUET | MN |
| 2005-06-24 | 403-955 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2005-06-24 | 418-489 | not yet reported which blocks → | Videotron Ltd. | 8306 | Clermont | — |
| 2005-06-24 | 709-276 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Marystown | — |
| 2005-06-24 | 709-449 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | St. Anthony | — |
| 2005-06-24 | 709-540 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Wesleyville | — |
| 2005-06-24 | 709-692 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Springdale | — |
| 2005-06-24 | 709-696 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Port Aux Basques | — |
| 2005-06-24 | 819-203 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mont-Laurier | — |
| 2005-06-24 | 828-505 | 0–9 XXXall 10 · 3 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | ASHEVILLE | NC |
| 2005-06-24 | 902-314 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Charlottetown | — |
| 2005-06-24 | 902-315 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Summerside | — |
| 2005-06-23 | 254-415 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | KILLEEN | TX |
| 2005-06-23 | 402-410 | 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | SUTTON | NE |
| 2005-06-23 | 506-234 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint-Quentin | — |
| 2005-06-23 | 506-274 | not yet reported which blocks → | Bell Mobility Aliant | 329A | Perth-Andover | — |
| 2005-06-23 | 506-326 | not yet reported which blocks → | Bell Mobility Aliant | 329A | Minto | — |
| 2005-06-23 | 506-355 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Plaster Rock | — |
| 2005-06-23 | 506-361 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Doaktown | — |
| 2005-06-23 | 506-421 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | St. Leonard | — |
| 2005-06-23 | 506-661 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Grand Manan | — |
| 2005-06-23 | 506-751 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Petitcodiac | — |
| 2005-06-23 | 712-432 | not yet reported which blocks → | GREAT LAKES COMMUNICATION CORP. - IA | 345D | LAKE PARK | IA |
| 2005-06-23 | 719-502 | 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | QWEST CORPORATION | 9636 | COLORDOSPG | CO |
| 2005-06-23 | 778-836 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2005-06-23 | 940-473 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | VERNON | TX |
| 2005-06-22 | 205-546 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | WINFIELD | AL |
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.