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
2025-06-27 205-284 0XXX1XXX2XXX3XXX4XXX7XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H COLUMBIANA AL
2024-11-20 205-897 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BIRMINGHAM AL
2023-05-26 205-334 0XXX1XXX3XXX4XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BUTLER AL
2023-05-25 205-659 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2023-05-24 205-256 1XXX2XXX3XXX4XXX5XXX6XXX which blocks → ONVOY SPECTRUM, LLC 624H BERRY AL
2023-05-23 205-205 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H BIRMINGHAM AL
2022-11-09 205-840 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 ALABASTER AL
2022-01-31 205-866 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H DORA AL
2020-12-18 205-794 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → HARGRAY OF ALABAMA, INC. - AL 432J LINCOLN AL
2020-06-18 205-984 0–9 XXXall 10 · 5 holders which blocks → AIRUS, INC. - AL 476H EUTAW AL
2020-05-29 205-974 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALABASTER AL
2020-05-12 205-973 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F DOUBLE SPG AL
2020-05-11 205-827 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E FLATWOOD AL
2020-04-07 205-964 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F PANOLA AL
2020-03-31 205-961 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2020-03-31 205-962 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BIRMINGHAM AL
2020-03-31 205-963 0–9 XXXall 10 · 4 holders which blocks → INTRADO COMMUNICATIONS LLC 807C BIRMINGHAM AL
2020-03-09 205-953 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 JASPER AL
2020-03-06 205-947 0–9 XXXall 10 · 4 holders which blocks → AT&T - LOCAL 7421 CARBONHILL AL
2020-03-03 205-946 0–9 XXXall 10 · 6 holders which blocks → AIRUS, INC. - AL 476H BIRMINGHAM AL
2020-01-29 205-931 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F CARBONHILL AL
2019-12-31 205-898 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E PARRISH AL
2019-12-31 205-927 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E REFORM AL
2019-12-19 205-885 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → HD CARRIER LLC 321J ASHVILLE AL
2019-11-14 205-892 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E CORDOVA AL
2019-11-14 205-894 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E ALABASTER AL
2019-11-14 205-896 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E HALEYVILLE AL
2019-10-11 205-922 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H BIRMINGHAM AL
2019-10-02 205-883 0–9 XXXall 10 · 2 holders which blocks → AIRUS, INC. - AL 476H W BLOCTON AL
2019-09-20 205-882 0–9 XXXall 10 · 3 holders which blocks → HARGRAY OF ALABAMA, INC. - AL 432J BIRMINGHAM AL
2019-06-18 205-829 0–9 XXXall 10 · 4 holders which blocks → VOIP INNOVATIONS, LLC 597F BIRMINGHAM AL
2019-06-18 205-839 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E CARROLLTON AL
2019-06-18 205-843 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E EUTAW AL
2019-06-18 205-846 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E LIVINGSTON AL
2019-06-18 205-851 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E MONTEVALLO AL
2019-06-18 205-852 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E PINSON AL
2019-06-18 205-890 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E ALICEVILLE AL
2019-06-18 205-891 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E BRILLIANT AL
2019-06-13 205-899 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H BIRMINGHAM AL
2019-05-09 205-749 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F CHELSEA AL
2019-04-26 205-736 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 YORK AL
2019-04-11 205-729 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 ALABASTER AL
2019-02-13 205-797 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E PANOLA AL
2019-01-18 205-825 0–9 XXXall 10 · 4 holders which blocks → HD CARRIER LLC 321J BIRMINGHAM AL
2018-11-19 205-360 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F ODENVILLE AL
2018-11-14 205-350 0–9 XXXall 10 · 2 holders which blocks → VONAGE AMERICA LLC 197D BESSEMER AL
2018-09-21 205-793 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F VINCENT AL
2018-09-13 205-784 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALABASTER AL
2018-08-29 205-619 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E BERRY AL
2018-08-29 205-782 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E HALEYVILLE 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.