NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 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, last 30 days — NPA 251
WIDE VOICE, LLC - AL 1
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
— 251-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AL
— 251-928 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 FAIRHOPE AL
— 251-929 4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 FAIRHOPE AL
— 251-931 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CLEAR SPG AL
— 251-937 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BAYMINETTE AL
— 251-942 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-943 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-944 1XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MCINTOSH AL
— 251-945 8XXX which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-946 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-947 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-948 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-949 0XXX2XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-950 not yet reported which blocks → AL
— 251-952 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-955 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-957 5XXX7XXX8XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 IRNGTNSTEL AL
— 251-958 not yet reported which blocks → AL
— 251-959 not yet reported which blocks → AL
— 251-960 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-961 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-962 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-964 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-965 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-966 not yet reported which blocks → CASTLEBERRY TEL. CO., INC. 0285 CASTLEBRY AL
— 251-967 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-968 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-970 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-971 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-972 5XXX which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-973 3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BELLEFONTN AL
— 251-974 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-975 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-976 not yet reported which blocks → AL
— 251-978 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
— 251-979 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
— 251-980 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-981 not yet reported which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-986 0XXX1XXX2XXX which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-987 0XXX4XXX which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-988 7XXX which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-989 1XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF SOUTHERN ALABAMA 0298 FOLEY AL
— 251-990 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 FAIRHOPE 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.