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
— 404-392 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-398 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-400 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E ATLANTA GA
— 404-401 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-402 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-403 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-405 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-406 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-407 0XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-408 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX GA
— 404-412 not yet reported which blocks → EXIANT COMMUNICATIONS LLC 114J ATLANTA GA
— 404-415 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 ATLANTA GA
— 404-417 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-419 7XXX which blocks → PAETEC ITEL, LLC 829J ATLANTA GA
— 404-420 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-421 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-422 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-423 2XXX which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-425 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-427 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-431 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-432 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-433 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-434 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-435 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-439 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA GA
— 404-440 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 XXXXXXXXXX GA
— 404-441 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-442 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-443 not yet reported which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
— 404-444 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-446 5XXX6XXX7XXX8XXX which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA GA
— 404-456 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-459 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-460 not yet reported which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
— 404-461 3XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
— 404-463 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-464 5XXX6XXX7XXX8XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
— 404-467 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-469 not yet reported which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
— 404-471 3XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-472 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-473 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 ATLANTA GA
— 404-475 7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA GA
— 404-477 4XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J ATLANTA GA
— 404-478 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA GA
— 404-479 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA GA
— 404-480 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA GA
— 404-483 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 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.