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 337
NEW CINGULAR WIRELESS PCS, LLC - GA 98
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
2024-12-30 337-712 0XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2023-07-20 337-575 0XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VINTON LA
2022-09-07 337-203 0XXX1XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LACASSINE LA
2020-04-06 337-512 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARLYSS LA
2020-03-23 337-487 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2019-12-16 337-486 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2017-03-08 337-382 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2015-11-23 337-242 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2015-05-15 337-520 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARENCRO LA
2015-01-22 337-603 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2014-10-08 337-509 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2014-05-19 337-516 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2012-08-20 337-400 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2011-10-26 337-419 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2010-03-24 337-476 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2009-09-30 337-388 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JENNINGS LA
2009-07-20 337-707 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2009-07-01 337-245 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SWEET LAKE LA
2009-02-24 337-428 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JEANERETTE LA
2006-05-22 337-655 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2006-04-19 337-552 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BROUSSARD LA
2005-12-19 337-466 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2005-08-12 337-965 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARLYSS LA
2005-02-18 337-459 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2005-02-09 337-852 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2005-02-09 337-940 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BALDWIN LA
2004-03-16 337-317 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE QUINCY LA
2004-03-16 337-358 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 IOWA LA
2003-09-17 337-356 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2003-09-17 337-384 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
2003-08-07 337-396 none assigned yet which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
2003-08-05 337-368 0XXX1XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JENNINGS LA
2003-05-20 337-372 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MERRYVILLE LA
2003-04-16 337-353 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2003-01-30 337-350 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CENTERVL LA
2002-08-20 337-342 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2002-04-09 337-308 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2002-04-09 337-309 2XXX3XXX4XXX5XXX6XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2002-04-04 337-240 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2002-04-04 337-321 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2001-10-26 337-315 2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2001-10-18 337-256 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2001-10-18 337-258 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2001-09-17 337-275 2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JENNINGS LA
2001-09-17 337-290 3XXX4XXX5XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2001-06-28 337-257 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2001-06-15 337-287 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2001-04-17 337-322 5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2001-03-14 337-246 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JENNINGS LA
2001-01-31 337-304 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA

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.