NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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
2019-05-15 234-529 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H AKRON OH
2019-05-15 276-240 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E BLUEFIELD VA
2019-05-15 276-282 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E RICHLANDS VA
2019-05-15 276-295 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E PENINGTNGP VA
2019-05-15 276-330 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → ONVOY, LLC - VA 138E BIG PRATER VA
2019-05-15 307-244 0XXX4XXX · 2 holders which blocks → SILVER STAR TEL CO INC 2295 FREEDOM WY
2019-05-15 314-639 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2019-05-15 321-324 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2019-05-15 470-523 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA NW GA
2019-05-15 725-220 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NV 029F LAS VEGAS NV
2019-05-15 725-224 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NV 587C LAS VEGAS NV
2019-05-15 762-282 0–9 XXXall 10 · 5 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ELLIJAY GA
2019-05-15 813-564 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2019-05-15 825-396 not yet reported which blocks → TELUS 8084 Oyen —
2019-05-15 930-222 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → FRACTEL, LLC 965H BROWNSTOWN IN
2019-05-15 930-333 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → FRACTEL, LLC 965H BLOOMINGTN IN
2019-05-15 980-326 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E CHARLOTTE NC
2019-05-14 314-530 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - MO 093F ST LOUIS MO
2019-05-14 424-430 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CMTN GRDN CA
2019-05-14 434-331 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - VA 138E EMPORIA VA
2019-05-14 470-491 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA SO GA
2019-05-14 470-508 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA NE GA
2019-05-14 505-421 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NM 123F FARMINGTON NM
2019-05-14 517-247 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E JACKSON MI
2019-05-14 612-431 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2019-05-14 734-897 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → 123.NET, LLC 2550 FLAT ROCK MI
2019-05-14 774-389 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - MA 892D WORCESTER MA
2019-05-14 814-413 0XXX1XXX2XXX3XXX5XXX6XXX7XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F ERIE PA
2019-05-14 909-719 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-05-14 910-752 0XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E HOLLYRIDGE NC
2019-05-14 940-331 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F DENTON TX
2019-05-13 229-437 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - GA 067D ADEL GA
2019-05-13 231-900 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H MUSKEGON MI
2019-05-13 269-800 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H KALAMAZOO MI
2019-05-13 302-493 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2019-05-13 312-779 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC 224C CHICGOZN01 IL
2019-05-13 332-600 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H NWYRCYZN01 NY
2019-05-13 515-516 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IA 985E BLAIRSBURG IA
2019-05-13 616-300 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H HUDSONVL MI
2019-05-13 626-955 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H AZUSA CA
2019-05-13 657-732 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H SILVERADO CA
2019-05-13 657-758 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ANAHEIM CA
2019-05-13 657-766 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SANTA ANA CA
2019-05-13 657-877 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H HUNTITNBCH CA
2019-05-13 657-977 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H WESTMINSTR CA
2019-05-13 661-786 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H SNCA SGCC CA
2019-05-13 661-899 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H LANCASTER CA
2019-05-13 747-474 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H BRBN BRBN CA
2019-05-13 747-732 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SNFN SNFN CA
2019-05-13 747-744 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNFN GRHL CA

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.