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
— 337-208 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
— 337-250 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
— 337-278 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-280 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-288 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-298 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-302 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-303 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-344 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-349 6XXX7XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-351 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
— 337-380 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
— 337-403 0XXX1XXX2XXX3XXX4XXX7XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HAYES LA
— 337-438 5XXX6XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-452 2XXX6XXX7XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HAYES LA
— 337-485 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-488 0XXX1XXX2XXX6XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-489 0XXX1XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-495 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
— 337-496 1XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-499 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-501 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-515 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-519 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
— 337-526 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-529 1XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-532 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-570 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-577 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
— 337-578 5XXX6XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BALDWIN LA
— 337-579 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JEANERETTE LA
— 337-580 6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
— 337-581 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
— 337-592 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KROTZ SPG LA
— 337-654 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-660 0XXX2XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-661 6XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-692 6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
— 337-764 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-831 6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
— 337-842 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-849 0XXX1XXX2XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-853 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-884 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
— 337-888 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
— 337-945 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
— 337-962 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
— 337-967 7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA 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.