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 256
POWERTEL BIRMINGHAM LICENSES, INC. 49
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
2021-12-17 256-951 0–9 XXXall 10 · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ARAB AL
2021-04-27 256-889 0–9 XXXall 10 · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ARAB AL
2016-07-19 256-800 0–9 XXXall 10 · 6 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ATHENS AL
2010-01-15 256-919 0–9 XXXall 10 · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ARAB AL
2005-01-14 256-400 0–9 XXXall 10 · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALBERTVL AL
2004-11-02 256-849 0–9 XXXall 10 · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALBERTVL AL
2004-09-02 256-660 0–9 XXXall 10 · 7 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALBERTVL AL
2003-04-16 256-595 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 CULLMAN AL
2003-04-02 256-591 2XXX3XXX4XXX which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ANNISTON AL
2002-12-31 256-374 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ATHENS AL
2002-12-31 256-388 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALBERTVL AL
2002-04-25 256-861 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 SYLACAUGA AL
2002-04-03 256-479 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
2002-03-06 256-415 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 FLORENCE AL
2002-01-03 256-466 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DECATUR AL
2001-11-19 256-468 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
2001-09-28 256-410 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 MOULTON AL
2001-09-26 256-398 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 RUSSELLVL AL
2001-05-02 256-750 4XXX6XXX7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALEXANDRCY AL
2001-04-21 256-371 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ANNISTON AL
2001-04-17 256-328 7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 GADSDEN AL
2001-04-11 256-345 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DECATUR AL
2001-04-11 256-348 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
2001-04-11 256-394 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 FLORENCE AL
2001-01-29 256-305 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ATTALLA AL
— 256-225 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ANNISTON AL
— 256-226 6XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALBERTVL AL
— 256-227 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DECATUR AL
— 256-251 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BOAZ AL
— 256-294 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ANNISTON AL
— 256-312 8XXX which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 GADSDEN AL
— 256-322 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 TALLADEGA AL
— 256-334 0–9 XXXall 10 · 5 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALBERTVL AL
— 256-335 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 FLORENCE AL
— 256-337 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-441 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 GADSDEN AL
— 256-457 7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-525 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ANNISTON AL
— 256-642 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DECATUR AL
— 256-652 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-654 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DECATUR AL
— 256-658 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-673 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 GUNTERSVL AL
— 256-694 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-749 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ALEXANDRCY AL
— 256-797 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-872 7XXX8XXX · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 SYLACAUGA AL
— 256-874 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ATHENS AL
— 256-962 5XXX6XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 CULLMAN AL

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.