NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 205
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 224
NEW CINGULAR WIRELESS PCS, LLC - GA 92
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 84
PAETEC ITEL, LLC 53
POWERTEL BIRMINGHAM LICENSES, INC. 42
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
2011-03-17 205-500 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2010-12-13 205-200 0–9 XXXwhole prefix which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 SPRINGVL AL
2010-06-08 205-767 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2010-03-02 205-604 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BUTLER AL
2010-01-13 205-603 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2009-12-22 205-319 0–9 XXXall 10 · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C CALERA AL
2009-12-21 205-235 0–9 XXXall 10 · 4 holders which blocks → AT&T ENTERPRISES, LLC 516C DORA AL
2009-12-10 205-718 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2009-10-28 205-593 0–9 XXXall 10 · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2009-09-28 205-598 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2009-09-24 205-578 0–9 XXXall 10 · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2009-07-10 205-538 0–9 XXXall 10 · 3 holders which blocks → AT&T ENTERPRISES, LLC 516C BIRMINGHAM AL
2009-07-10 205-737 0–9 XXXall 10 · 3 holders which blocks → AT&T ENTERPRISES, LLC 516C TUSCALOOSA AL
2009-03-24 205-536 0–9 XXXall 10 · 4 holders which blocks → BROADRIVER COMMUNICATION CORPORATION - GA 0173 BIRMINGHAM AL
2009-02-02 205-557 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VERNON AL
2008-11-17 205-552 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2008-11-14 205-574 1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 LISMAN AL
2008-11-04 205-777 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2008-06-09 205-641 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2008-05-27 205-202 0–9 XXXall 10 · 4 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L BIRMINGHAM AL
2008-05-14 205-547 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2008-04-18 205-614 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 TUSCALOOSA AL
2008-03-21 205-745 0–9 XXXall 10 · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2008-03-19 205-820 0–9 XXXall 10 · 2 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2008-03-17 205-634 6XXX7XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F WINFIELD AL
2008-03-05 205-505 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 RAGLAND AL
2008-01-18 205-748 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 FAYETTE AL
2008-01-04 205-504 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2007-12-26 205-701 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F BIRMINGHAM AL
2007-11-16 205-528 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GUIN AL
2007-10-18 205-508 0–9 XXXall 10 · 9 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L TRUSSVILLE AL
2007-09-24 205-201 0–9 XXXall 10 · 6 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L BIRMINGHAM AL
2007-06-27 205-764 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J TUSCALOOSA AL
2007-04-19 205-639 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - AL 604E BIRMINGHAM AL
2007-03-01 205-470 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2007-01-24 205-834 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2007-01-09 205-306 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2006-12-20 205-627 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DOUBLE SPG AL
2006-10-12 205-766 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BIRMINGHAM AL
2006-10-05 205-747 0–9 XXXall 10 · 5 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K BIRMINGHAM AL
2006-06-02 205-789 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2006-05-15 205-844 0–9 XXXall 10 · 5 holders which blocks → CELLULAR SOUTH, INC. 6581 LIVINGSTON AL
2006-03-13 205-588 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2006-03-13 205-705 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2006-03-13 205-876 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2006-01-27 205-575 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 LIVINGSTON AL
2006-01-03 205-757 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 BIRMINGHAM AL
2006-01-03 205-765 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TUSCALOOSA AL
2005-12-12 205-544 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL 7469 JASPER AL
2005-12-02 205-543 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J WARRIOR AL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.