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 336
NEW CINGULAR WIRELESS PCS, LLC - GA 46
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
2019-01-25 336-979 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2011-03-24 336-448 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2009-07-24 336-415 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2007-02-08 336-350 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2007-01-25 336-300 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2006-10-11 336-756 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2006-05-18 336-489 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WJEFFERSON NC
2002-08-28 336-425 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
2002-06-12 336-653 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2002-03-26 336-428 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ELKIN NC
2001-12-27 336-755 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2001-11-27 336-588 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2001-08-17 336-693 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2001-01-30 336-965 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2001-01-17 336-671 2XXX3XXX4XXX5XXX6XXX7XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-225 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEXINGTON NC
— 336-244 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ELKIN NC
— 336-259 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
— 336-262 1XXX7XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NOWILKESBO NC
— 336-391 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-392 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-432 0XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 REIDSVILLE NC
— 336-453 0XXX1XXX2XXX5XXX6XXX7XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MADISON NC
— 336-508 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-509 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-521 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
— 336-549 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-655 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-675 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
— 336-681 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-682 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-684 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
— 336-686 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-692 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-710 6XXX7XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
— 336-749 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-782 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-847 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
— 336-848 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
— 336-986 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-987 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-988 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
— 336-989 6XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
— 336-991 5XXX6XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
— 336-995 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
— 336-997 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC

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.