NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, all time — NPA 907
ACS OF ANCHORAGE, INC. 70
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
— 907-243 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-245 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-248 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-249 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-257 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-258 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-261 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-263 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-264 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-265 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-266 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-267 9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-269 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-270 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-271 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-272 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-273 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-274 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-275 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-276 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-277 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-278 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-279 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-280 7XXX8XXX9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-297 8XXX9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE 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
— 907-336 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
— 907-341 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
— 907-365 9XXX which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-380 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-428 none assigned yet which blocks → ACS OF ANCHORAGE, INC. 3000 FTRICHADSN AK
— 907-522 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-538 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-550 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-561 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-562 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-563 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK
— 907-564 not yet reported which blocks → ACS OF ANCHORAGE, INC. 3000 ANCHORAGE AK

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.