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
NEW CINGULAR WIRELESS PCS, LLC - GA 48
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
2009-08-11 678-667 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2007-11-15 678-979 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINDER GA
2007-03-22 678-857 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWNAN GA
2006-09-27 678-848 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ADAIRSVL GA
2006-03-08 678-876 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWNAN GA
2005-12-12 678-997 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GAINESVL GA
2004-10-27 678-863 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINDER GA
2002-10-09 678-756 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NW GA
2002-10-09 678-761 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NW GA
2002-10-09 678-763 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2002-10-09 678-764 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2002-03-28 678-733 6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
2002-01-29 678-988 6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CEDARTOWN GA
2001-03-27 678-982 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2001-03-27 678-983 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-230 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-231 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-232 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-234 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-294 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-296 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-313 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-314 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-315 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-316 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GAINESVL GA
— 678-386 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-427 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-428 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-429 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-431 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-488 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-575 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-576 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-617 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GAINESVL GA
— 678-640 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-641 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-642 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-644 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-654 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-662 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-772 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-773 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-788 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
— 678-910 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-925 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 678-936 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GAINESVL GA
— 678-938 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
— 678-986 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ADAIRSVL 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.