NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 678
PAETEC ITEL, LLC 159
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 123
LEVEL 3 COMMUNICATIONS, LLC - GA 94
METROPCS, INC. 64
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 56
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
— 678-825 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA NE GA
— 678-826 1XXX2XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA SO GA
— 678-827 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA SO GA
— 678-828 1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FLOWEYBRCH GA
— 678-829 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA SO GA
— 678-830 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA NE GA
— 678-831 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA NW GA
— 678-832 3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA NE GA
— 678-834 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA SO GA
— 678-835 7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J BUFORD GA
— 678-836 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA NE GA
— 678-837 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA NE GA
— 678-838 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA NW GA
— 678-839 7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J CARROLLTON GA
— 678-840 1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VILLA RICA GA
— 678-841 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 ATLANTA NW GA
— 678-842 1XXX2XXX3XXX4XXX8XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA NW GA
— 678-843 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA GA
— 678-844 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA NW GA
— 678-845 7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CUMMING GA
— 678-849 0XXX2XXX which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA NE GA
— 678-852 0XXX2XXX · 2 holders which blocks → METROPCS, INC. 5562 ATLANTA NE GA
— 678-853 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J ROOPVILLE GA
— 678-854 7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NEWNAN GA
— 678-855 0–9 XXXall 10 · 4 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 678-859 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 GAINESVL GA
— 678-860 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
— 678-864 not yet reported which blocks → PAETEC ITEL, LLC 829J LULA GA
— 678-866 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - GA 067D FLOWEYBRCH GA
— 678-868 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
— 678-869 1XXX5XXX · 2 holders which blocks → BROADRIVER COMMUNICATION CORPORATION - GA 0173 ATLANTA NE GA
— 678-872 2XXX3XXX which blocks → BROADRIVER COMMUNICATION CORPORATION - GA 0173 ATLANTA NW GA
— 678-878 2XXX3XXX4XXX which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA NE GA
— 678-879 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ATLANTA NE GA
— 678-882 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ADAIRSVL GA
— 678-883 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - GA 067D ROCKMART GA
— 678-885 7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CONCORD GA
— 678-888 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J ATLANTA NW GA
— 678-891 7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J ATLANTA GA
— 678-893 2XXX6XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA NE GA
— 678-895 0XXX2XXX which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA NE GA
— 678-896 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA NE GA
— 678-898 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA NE GA
— 678-901 0–9 XXXall 10 · 6 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K CEDARTOWN GA
— 678-902 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ATLANTA SO GA
— 678-903 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ATLANTA NW GA
— 678-904 3XXX which blocks → ONVOY, LLC - GA 067D ATLANTA GA
— 678-910 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX GA
— 678-913 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → XO GEORGIA, INC. 8758 ATLANTA GA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.