NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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. 38
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
— 907-297 8XXX9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-298 not yet reported which blocks → UNITED UTILITIES, INC. 3023 TAKOTNA AK
— 907-299 5XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 HOMER AK
— 907-301 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AK
— 907-320 none assigned yet which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 GLENNALLEN AK
— 907-321 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 6872 JUNEAU AK
— 907-322 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 6872 FAIRBANKS AK
— 907-323 not yet reported which blocks → ALASKA TELEPHONE COMPANY 3017 DRY CREEK AK
— 907-324 not yet reported which blocks → ALASKA TELEPHONE COMPANY 3017 TETLIN AK
— 907-325 3XXX which blocks → COPPER VALLEY TEL. COOP., INC. 3006 TATITLEK AK
— 907-329 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 COFFMAN CV AK
— 907-330 4XXX7XXX9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-331 0XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-332 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-333 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-334 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 ANCHORAGE AK
— 907-335 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 KENAI AK
— 907-336 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-337 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-338 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-339 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 ANCHORAGE AK
— 907-341 3XXX4XXX7XXX9XXX · 2 holders which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-342 2XXX5XXX7XXX9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-343 9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-344 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-345 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-346 0XXX7XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-348 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-349 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-350 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-351 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-352 not yet reported which blocks → MATANUSKA TEL. ASSN., INC. 3015 WASILLA AK
— 907-353 not yet reported which blocks → ACS OF ALASKA, INC. 3022 FTWAINWRIT AK
— 907-354 not yet reported which blocks → MATANUSKA TEL. ASSN., INC. 3015 WASILLA AK
— 907-355 not yet reported which blocks → MATANUSKA TEL. ASSN., INC. 3015 WASILLA AK
— 907-356 4XXX9XXX which blocks → ACS OF ALASKA, INC. 3022 FTWAINWRIT AK
— 907-357 not yet reported which blocks → MATANUSKA TEL. ASSN., INC. 3015 WASILLA AK
— 907-358 not yet reported which blocks → UNITED UTILITIES, INC. 3023 RAMPART AK
— 907-360 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-361 not yet reported which blocks → ACS OF ALASKA, INC. 3022 FTWAINWRIT AK
— 907-362 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 6872 SEWARD AK
— 907-363 none assigned yet which blocks → OTZ TEL. COOP., INC. 3019 DEERING AK
— 907-364 not yet reported which blocks → ACS OF ALASKA, INC. 3022 JUNEAU AK
— 907-365 9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-366 not yet reported which blocks → YUKON TEL. CO., INC. 3025 TANANA AK
— 907-367 not yet reported which blocks → ASTAC WIRELESS LLC 6354 BARROW AK
— 907-368 not yet reported which blocks → ARCTIC SLOPE TEL. ASSN. COOP., INC. 3001 POINT HOPE AK
— 907-369 not yet reported which blocks → SUMMIT TEL 3028 CHNAHOTSPG AK
— 907-372 not yet reported which blocks → ACS OF ALASKA, INC. 3022 EIELSONAFB AK

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.