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 225
NEW CINGULAR WIRELESS PCS, LLC - GA 87
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
— 225-244 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLINTON LA
— 225-245 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STFRNCISVL LA
— 225-247 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-252 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-276 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-324 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-329 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-331 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CONVENT LA
— 225-360 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-367 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-385 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLAQUEMINE LA
— 225-405 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-485 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-505 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-571 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-572 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-573 5XXX6XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-603 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-715 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-716 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WH CASTLE LA
— 225-717 5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DONALDSNVL LA
— 225-718 6XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW ROADS LA
— 225-719 4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLINTON LA
— 225-721 4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STFRNCISVL LA
— 225-776 8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLAQUEMINE LA
— 225-888 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-907 0XXX1XXX2XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-916 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-921 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-931 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-933 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-936 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-937 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-938 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-939 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-978 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-999 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE 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.