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
— 404-917 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J ATLANTA GA
— 404-918 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-920 4XXX8XXX which blocks → LEVEL 3 TELECOM OF GEORGIA, LP - GA 7490 ATLANTA GA
— 404-921 1XXX4XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
— 404-923 0XXX4XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-924 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-925 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-926 6XXX7XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-927 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-928 not yet reported which blocks → MERRYVILLE INVESTMENTS, LTD DBA BEST PAGE 6628 ATLANTA GA
— 404-929 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-930 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 XXXXXXXXXX GA
— 404-931 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-932 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-935 1XXX2XXX3XXX8XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
— 404-941 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J ATLANTA GA
— 404-942 7XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA GA
— 404-943 8XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-944 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-945 not yet reported which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA GA
— 404-946 3XXX8XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA GA
— 404-948 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-949 7XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-950 not yet reported which blocks → GA
— 404-954 0XXX1XXX2XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-957 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 ATLANTA GA
— 404-958 not yet reported which blocks → GA
— 404-959 not yet reported which blocks → GA
— 404-961 not yet reported which blocks → BROADRIVER COMMUNICATION CORPORATION - GA 0173 ATLANTA GA
— 404-962 0XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-963 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
— 404-964 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-965 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA GA
— 404-966 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-968 2XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-969 2XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J ATLANTA GA
— 404-970 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 XXXXXXXXXX GA
— 404-972 not yet reported which blocks → EXIANT COMMUNICATIONS LLC 114J ATLANTA GA
— 404-974 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA GA
— 404-975 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
— 404-976 not yet reported which blocks → GA
— 404-978 3XXX5XXX which blocks → LEVEL 3 TELECOM OF GEORGIA, LP - GA 7490 ATLANTA GA
— 404-979 0XXX1XXX4XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-982 4XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-983 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-984 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 404-986 8XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 404-992 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-993 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 404-995 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 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.