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
2018-08-28 205-772 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E ETHELSVL AL
2018-08-28 205-813 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E PELL CITY AL
2018-08-15 205-539 0–9 XXXall 10 · 4 holders which blocks → AIRUS, INC. - AL 476H TUSCALOOSA AL
2018-08-10 205-771 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TUSCALOOSA AL
2018-07-23 205-768 0–9 XXXall 10 · 5 holders which blocks → AIRESPRING, INC. 996H BIRMINGHAM AL
2018-07-11 205-756 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 BESSEMER AL
2018-07-11 205-761 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2018-07-02 205-754 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F JASPER AL
2018-06-25 205-751 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E CARBONHILL AL
2018-05-07 205-615 0–9 XXXall 10 · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 LEEDS AL
2018-03-22 205-738 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F SPRINGVL AL
2018-03-09 205-734 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2018-01-17 205-728 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALABASTER AL
2018-01-16 205-850 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E WARRIOR AL
2018-01-09 205-880 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E GRAYSVILLE AL
2017-12-27 205-723 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TUSCALOOSA AL
2017-12-15 205-709 0–9 XXXall 10 · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2017-12-15 205-855 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E BIRMINGHAM AL
2017-11-13 205-684 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 LEEDS AL
2017-11-13 205-691 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BUTLER AL
2017-10-30 205-653 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BIRMINGHAM AL
2017-10-10 205-635 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PINSON AL
2017-09-28 205-600 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2017-09-07 205-584 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 BESSEMER AL
2017-08-03 205-573 0–9 XXXall 10 · 5 holders which blocks → VONAGE AMERICA LLC 197D BIRMINGHAM AL
2017-08-03 205-579 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 TUSCALOOSA AL
2017-07-14 205-537 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 TRUSSVILLE AL
2017-06-22 205-407 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H BIRMINGHAM AL
2017-04-07 205-842 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2017-04-04 205-597 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2017-03-13 205-848 0–9 XXXall 10 · 7 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 BIRMINGHAM AL
2017-02-15 205-778 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E BIRMINGHAM AL
2017-02-10 205-644 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2017-02-10 205-645 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2017-01-11 205-895 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2016-12-20 205-860 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 TUSCALOOSA AL
2016-12-15 205-864 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2016-12-12 205-845 not yet reported which blocks → PINE BELT BROADCASTING DBA PINE BELT TEL COMP SVCS 9736 BUTLER AL
2016-12-06 205-847 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 BIRMINGHAM AL
2016-10-06 205-905 0–9 XXXall 10 · 6 holders which blocks → WIDE VOICE, LLC - AL 764H BIRMINGHAM AL
2016-09-22 205-878 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 JASPER AL
2016-09-02 205-519 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BESSEMER AL
2016-09-02 205-526 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TUSCALOOSA AL
2016-07-28 205-859 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GARDENDALE AL
2016-07-18 205-990 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 CLANTON AL
2016-06-23 205-651 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F CALERA AL
2016-06-20 205-858 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F COLUMBIANA AL
2016-03-30 205-710 0–9 XXXall 10 · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 TUSCALOOSA AL
2016-03-08 205-666 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E BIRMINGHAM AL
2016-03-08 205-997 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 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.