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
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 180
NEW CINGULAR WIRELESS PCS, LLC - GA 114
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 84
PAETEC ITEL, LLC 58
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 256-239 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANNISTON AL
— 256-240 0XXX1XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ANNISTON AL
— 256-241 not yet reported which blocks → PAETEC ITEL, LLC 829J ANNISTON AL
— 256-244 8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCOTTSBORO AL
— 256-245 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SYLACAUGA AL
— 256-246 8XXX which blocks → PAETEC ITEL, LLC 829J FLORENCE AL
— 256-247 2XXX4XXX6XXX8XXX9XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ROGERSVL AL
— 256-248 4XXX7XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J SHEFFIELD AL
— 256-249 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SYLACAUGA AL
— 256-251 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BOAZ AL
— 256-253 1XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 CHULAFINNE AL
— 256-255 2XXX4XXX6XXX7XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CULLMAN AL
— 256-257 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - AL 604E FALKVILLE AL
— 256-258 5XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J MADISON AL
— 256-259 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 SCOTTSBORO AL
— 256-260 not yet reported which blocks → PAETEC ITEL, LLC 829J DECATUR AL
— 256-261 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
— 256-262 3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ATHENS AL
— 256-263 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → AT&T - LOCAL 7421 FLORENCE AL
— 256-264 4XXX which blocks → PAETEC ITEL, LLC 829J GUNTERSVL AL
— 256-267 3XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 SYLACAUGA AL
— 256-268 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 TALLADEGA AL
— 256-270 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 HUNTSVILLE AL
— 256-272 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 KILLEN AL
— 256-274 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 DECATUR AL
— 256-275 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FLORENCE AL
— 256-276 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHLAND AL
— 256-277 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J RUSSELLVL AL
— 256-279 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ALBERTVL AL
— 256-281 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J BOAZ AL
— 256-282 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANNISTON AL
— 256-283 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANNISTON AL
— 256-287 4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HANCEVILLE AL
— 256-288 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HUNTSVILLE AL
— 256-292 0XXX7XXX8XXX9XXX which blocks → PEOPLES TEL. CO., INC. 0314 GRAYSON AL
— 256-294 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ANNISTON AL
— 256-295 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J GADSDEN AL
— 256-296 not yet reported which blocks → BRINDLEE MOUNTAIN TELEPHONE LLC 0283 UNIONGROVE AL
— 256-297 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → METROPCS, INC. 5562 CULLMAN AL
— 256-299 3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J TALLADEGA AL
— 256-301 2XXX7XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DECATUR AL
— 256-303 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 DECATUR AL
— 256-304 4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J FORT PAYNE AL
— 256-306 6XXX7XXX8XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DECATUR AL
— 256-308 4XXX6XXX8XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DECATUR AL
— 256-309 1XXX3XXX4XXX6XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DECATUR AL
— 256-310 none assigned yet which blocks → METROPCS, INC. 5562 ANNISTON AL
— 256-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AL
— 256-312 8XXX which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 GADSDEN AL
— 256-313 not yet reported which blocks → CENTURYLINK COMMUNICATIONS LLC - AL 7451 HUNTSVILLE 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.