NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
— 334-409 1XXX4XXX6XXX8XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MONTGOMERY AL
— 334-410 not yet reported which blocks → PAETEC ITEL, LLC 829J SELMA AL
— 334-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AL
— 334-412 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 SELMA AL
— 334-413 4XXX5XXX7XXX8XXX which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 SELMA AL
— 334-416 8XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MONTGOMERY AL
— 334-418 2XXX7XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SELMA AL
— 334-419 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 SELMA AL
— 334-420 9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MONTGOMERY AL
— 334-423 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - AL 604E BANKS AL
— 334-426 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-427 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 ANDALUSIA AL
— 334-428 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 ANDALUSIA AL
— 334-429 5XXX6XXX7XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LUVERNE AL
— 334-430 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MONTGOMERY AL
— 334-431 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SELMA AL
— 334-432 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OZARK AL
— 334-437 5XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE AL
— 334-444 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 OPELIKA AL
— 334-445 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 OZARK AL
— 334-448 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 PHENIXCITY AL
— 334-449 4XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HARTFORD AL
— 334-451 3XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MONTGOMERY AL
— 334-453 4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GEORGIANA AL
— 334-456 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 THOMASVL AL
— 334-462 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONTGOMERY AL
— 334-464 7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ENTERPRISE AL
— 334-465 2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 TROY AL
— 334-466 1XXX4XXX6XXX7XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 AUBURN AL
— 334-467 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONTGOMERY AL
— 334-468 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 PHENIXCITY AL
— 334-469 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 RED LEVEL AL
— 334-470 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ENTERPRISE AL
— 334-474 not yet reported which blocks → UNION SPRINGS TEL. CO., INC. 0322 PEROTE AL
— 334-475 2XXX3XXX4XXX7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ENTERPRISE AL
— 334-477 0XXX5XXX7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DALEVILLE AL
— 334-480 1XXX5XXX6XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 PHENIXCITY AL
— 334-481 not yet reported which blocks → PAETEC ITEL, LLC 829J MONTGOMERY AL
— 334-484 not yet reported which blocks → BUTLER TEL. CO., INC. 0284 GOSHEN AL
— 334-485 not yet reported which blocks → UNION SPRINGS TEL. CO., INC. 0322 FORT DAVIS AL
— 334-486 not yet reported which blocks → SPOK, INC. 6630 MONTGOMERY AL
— 334-488 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANDALUSIA AL
— 334-491 not yet reported which blocks → WOW! INTERNET, CABLE AND PHONE 961J PRATTVILLE AL
— 334-492 3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 TROY AL
— 334-493 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 OPP AL
— 334-494 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ENTERPRISE AL
— 334-495 0XXX2XXX3XXX4XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MONTGOMERY AL
— 334-496 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 DOZIER AL
— 334-497 7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 LAFAYETTE AL
— 334-498 3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DALEVILLE 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.