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 404
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 293
POWERTEL ATLANTA LICENSES, INC. 132
NEW CINGULAR WIRELESS PCS, LLC - GA 90
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 90
ONVOY, LLC - GA 23
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
2025-05-15 404-540 0–9 XXXall 10 · 4 holders which blocks → LEAP TELECOM, LLC 616J ATLANTA GA
2023-11-06 404-678 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2023-11-06 404-912 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2023-08-23 404-837 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
2023-07-18 404-779 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2023-07-13 404-770 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA GA
2023-05-23 404-706 0–9 XXXall 10 · 2 holders which blocks → FIVE9, INC. 598J ATLANTA GA
2023-05-22 404-470 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2023-05-19 404-203 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
2023-05-17 404-404 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA GA
2023-04-18 404-716 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2023-03-21 404-703 0–9 XXXall 10 · 2 holders which blocks → FIVE9, INC. 598J ATLANTA GA
2023-02-27 404-690 0–9 XXXall 10 · 3 holders which blocks → HADLO TECHNOLOGIES, LLC 436J ATLANTA GA
2022-12-02 404-726 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2022-11-16 404-560 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
2022-10-17 404-342 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA GA
2022-07-19 404-282 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA GA
2022-07-19 404-533 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA GA
2022-04-29 404-517 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA GA
2022-04-29 404-868 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2022-04-22 404-208 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA GA
2021-10-13 404-595 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2020-03-16 404-967 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2020-01-30 404-757 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
2020-01-13 404-738 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2020-01-13 404-882 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-11-26 404-689 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 551G ATLANTA GA
2019-11-20 404-737 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-11-07 404-383 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-09-11 404-905 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA GA
2019-08-14 404-544 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
2019-07-12 404-777 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-07-12 404-999 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-05-07 404-301 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2015-08-12 404-360 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2015-05-11 404-476 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2013-11-08 404-666 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA GA
2013-09-10 404-947 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-08-05 404-807 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-07-05 404-977 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-06-07 404-640 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-05-20 404-528 0–9 XXXall 10 · 2 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2013-05-20 404-940 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2013-05-13 404-960 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-05-08 404-458 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E ATLANTA GA
2013-04-08 404-670 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-03-11 404-450 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-03-11 404-980 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2013-02-12 404-998 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2013-02-04 404-900 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA

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.