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 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
2023-12-05 678-706 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA SO GA
2023-07-06 678-912 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H ATLANTA SO GA
2023-05-22 678-470 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA SO GA
2023-05-17 678-678 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H CARROLLTON GA
2022-05-10 678-968 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ADAIRSVL GA
2013-04-08 678-203 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E CLERMONT GA
2013-01-10 678-515 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C ATLANTA GA
2011-06-27 678-751 0–9 XXXwhole prefix which blocks → METROPCS, INC. 5562 ATLANTA NE GA
2011-03-02 678-308 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 WINDER GA
2010-02-24 678-536 0–9 XXXall 10 · 3 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2010-02-17 678-675 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 NEWNAN GA
2010-02-16 678-670 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 WINDER GA
2009-12-30 678-800 0–9 XXXall 10 · 3 holders which blocks → AT&T ENTERPRISES, LLC 516C ADAIRSVL GA
2009-12-02 678-666 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2009-10-26 678-790 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 WINDER GA
2009-09-25 678-590 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 NEWNAN GA
2009-09-25 678-780 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 GAINESVL GA
2009-09-11 678-673 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 NEWNAN GA
2009-08-11 678-667 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2009-08-10 678-340 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 NEWNAN GA
2009-07-21 678-506 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C TEMPLE GA
2009-07-21 678-606 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E ATLANTA NE GA
2009-07-21 678-653 0–9 XXXall 10 · 2 holders which blocks → AT&T ENTERPRISES, LLC 516C ATLANTA NW GA
2009-06-12 678-404 0–9 XXXall 10 · 3 holders which blocks → AT&T ENTERPRISES, LLC 516C ATLANTA NE GA
2009-06-05 678-974 0–9 XXXall 10 · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C ATLANTA GA
2009-05-15 678-696 0–9 XXXall 10 · 6 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 GAINESVL GA
2009-04-15 678-900 0–9 XXXall 10 · 2 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 WINDER GA
2008-12-17 678-693 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 FLOWEYBRCH GA
2008-12-17 678-769 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 GAINESVL GA
2008-12-17 678-856 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 SOCIALCRCL GA
2008-11-19 678-532 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 COVINGTON GA
2008-11-13 678-600 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 CUMMING GA
2008-07-21 678-390 0–9 XXXall 10 · 3 holders which blocks → DOVETEL COMMUNICATIONS, LLC - GA 362B CARROLLTON GA
2008-07-09 678-650 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2008-05-28 678-310 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J ATLANTA NW GA
2008-03-12 678-630 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 GAINESVL GA
2007-11-21 678-972 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 GRIFFIN GA
2007-11-15 678-979 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINDER GA
2007-10-10 678-394 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 TELECOM OF GEORGIA, LP - GA 7490 BUFORD GA
2007-04-26 678-671 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 CONCORD GA
2007-03-28 678-975 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 WINDER GA
2007-03-22 678-857 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWNAN GA
2007-03-19 678-326 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 NEWNAN GA
2007-03-19 678-572 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 GRIFFIN GA
2007-03-19 678-861 0–9 XXXall 10 · 5 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 CEDARTOWN GA
2007-01-03 678-668 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 ATLANTA GA
2006-11-21 678-922 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VILLA RICA GA
2006-09-27 678-848 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ADAIRSVL GA
2006-09-25 678-664 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CARROLLTON GA
2006-09-19 678-544 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 GRIFFIN 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.