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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2016-02-17 205-875 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E W BLOCTON AL
2016-02-04 205-308 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E PINSON AL
2016-02-01 205-293 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E CENTREVL AL
2015-12-09 205-730 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 BIRMINGHAM AL
2015-11-19 205-236 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E BIRMINGHAM AL
2015-10-12 205-517 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2015-10-09 205-509 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F VINCENT AL
2015-10-09 205-512 0–9 XXXall 10 · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K JASPER AL
2015-07-14 205-571 0–9 XXXall 10 · 3 holders which blocks → WINDSTREAM ALABAMA, INC. 0302 LEEDS AL
2015-04-30 205-725 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 BIRMINGHAM AL
2015-04-09 205-881 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F BESSEMER AL
2015-03-31 205-831 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F CHELSEA AL
2015-02-23 205-971 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BIRMINGHAM AL
2014-12-29 205-872 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 TUSCALOOSA AL
2014-12-09 205-900 0–9 XXXall 10 · 4 holders which blocks → AIRUS, INC. - AL 476H BIRMINGHAM AL
2014-10-01 205-830 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BESSEMER AL
2014-09-12 205-832 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F PARRISH AL
2014-03-25 205-650 0–9 XXXall 10 · 8 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 TUSCALOOSA AL
2014-03-25 205-779 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J ALICEVILLE AL
2014-03-05 205-760 0–9 XXXall 10 · 4 holders which blocks → AT&T ENTERPRISES, LLC 516C BESSEMER AL
2014-02-27 205-774 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F BESSEMER AL
2014-02-26 205-740 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F CORDOVA AL
2014-02-21 205-632 0–9 XXXall 10 · 6 holders which blocks → METROPCS, INC. 5562 TUSCALOOSA AL
2014-01-22 205-773 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 LEEDS AL
2013-10-04 205-920 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 BESSEMER AL
2013-09-30 205-810 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F PINSON AL
2013-09-24 205-518 0–9 XXXall 10 · 7 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J BIRMINGHAM AL
2013-04-23 205-582 0–9 XXXall 10 · 5 holders which blocks → TELEPAK NETWORKS, INC. - AL 947G BIRMINGHAM AL
2013-03-07 205-224 0–9 XXXall 10 · 6 holders which blocks → PINE BELT BROADCASTING DBA PINE BELT TEL COMP SVCS 9736 BIRMINGHAM AL
2013-02-07 205-732 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 551G BIRMINGHAM AL
2012-08-22 205-708 0–9 XXXall 10 · 5 holders which blocks → MCC TELEPHONY LLC 593K YORK AL
2012-07-30 205-720 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F BESSEMER AL
2012-06-20 205-719 0–9 XXXall 10 · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2012-03-14 205-704 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2012-03-13 205-551 0–9 XXXall 10 · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K PHILCMPBLL AL
2012-03-13 205-606 0–9 XXXall 10 · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K SULLIGENT AL
2012-02-28 205-638 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BIRMINGHAM AL
2012-01-23 205-530 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F JASPER AL
2012-01-12 205-234 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2011-12-13 205-209 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2011-10-21 205-207 0–9 XXXall 10 · 2 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 SPRINGVL AL
2011-10-13 205-703 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2011-08-25 205-480 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2011-06-29 205-440 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2011-06-21 205-490 0–9 XXXall 10 · 6 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2011-06-16 205-460 0–9 XXXall 10 · 7 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2011-06-15 205-452 0–9 XXXall 10 · 6 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 SPRINGVL AL
2011-05-05 205-549 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F CARBONHILL AL
2011-03-28 205-400 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 BIRMINGHAM AL
2011-03-28 205-800 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 BESSEMER 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.