NumberResearch Membership · Data 09/24/2026

Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 31
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - IL 27
ONVOY, LLC - NJ 15
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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2022-09-06 769-291 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E MERIDIAN MS
2022-09-06 848-336 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 METUCHEN NJ
2022-09-06 862-405 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 NEWARK NJ
2022-09-06 862-406 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BLOOMFIELD NJ
2022-09-06 873-720 not yet reported which blocks → Bell Canada 984C Amos —
2022-09-06 873-721 not yet reported which blocks → Bell Canada 984C Senneterre —
2022-09-06 943-200 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
2022-09-02 223-292 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E JONESTOWN PA
2022-09-02 223-294 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E MIDDLETOWN PA
2022-09-02 223-295 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E MOUNT JOY PA
2022-09-02 223-296 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC - PA 547E MTHOLLYSPG PA
2022-09-02 224-483 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2022-09-02 272-296 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E LANSFORD PA
2022-09-02 272-297 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - PA 547E SELINSGRV PA
2022-09-02 272-298 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 TRUCKSVL PA
2022-09-02 318-440 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H BLANCHARD LA
2022-09-02 341-217 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E OKLD ALMD CA
2022-09-02 346-210 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 RICHMNRNBG TX
2022-09-02 346-281 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2022-09-02 346-430 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2022-09-02 346-469 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2022-09-02 346-586 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2022-09-02 448-227 0–9 XXXwhole prefix which blocks → COMCAST IP PHONE, LLC 318J PENSACOLA FL
2022-09-02 551-357 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NJ 637C OAKLAND NJ
2022-09-02 551-359 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 JERSEYCITY NJ
2022-09-02 559-807 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 FRESNO CA
2022-09-02 563-341 0–9 XXXall 10 · 5 holders which blocks → UNITED STATES CELLULAR - IA 6266 DUBUQUE IA
2022-09-02 571-564 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2022-09-02 571-579 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN08 VA
2022-09-02 571-580 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 OCCOQUAN VA
2022-09-02 571-751 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - VA 138E ARCOLA VA
2022-09-02 640-231 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NJ 637C BARNEGAT NJ
2022-09-02 640-232 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NJ 637C BURLINGTON NJ
2022-09-02 640-233 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NJ 637C MERCERVL NJ
2022-09-02 650-715 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C SAN MATEO CA
2022-09-02 651-498 0XXX1XXX3XXX8XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J STILLWATER MN
2022-09-02 661-594 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 SHAFTER CA
2022-09-02 672-703 not yet reported which blocks → Iristel Inc. 154E Cranbrook —
2022-09-02 682-390 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-09-02 682-391 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-09-02 682-392 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-09-02 737-331 0XXX1XXX2XXX8XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F DALE/LTNSP TX
2022-09-02 743-273 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NC 638E BURLINGTON NC
2022-09-02 743-337 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E ASHEBORO NC
2022-09-02 743-767 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E GIBSONVL NC
2022-09-02 747-745 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 NORTHRIDGE CA
2022-09-02 819-584 not yet reported which blocks → Cooptel 818D St-Adolphe-de-Dudswell —
2022-09-02 830-371 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C MARBLE FLS TX
2022-09-02 839-269 0–9 XXXwhole prefix which blocks → ONVOY, LLC - SC 548E LANCASTER SC
2022-09-02 839-569 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E BARNWELL SC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.