NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

322 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days
NEW CINGULAR WIRELESS PCS, LLC - IL 322
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-08-02 248-490-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-08-02 248-490-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-08-02 248-490-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-08-02 313-287-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DETROITZN5 MI
2023-08-02 313-287-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DETROITZN5 MI
2023-08-02 313-287-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DETROITZN5 MI
2023-08-02 313-713-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DETROITZN5 MI
2023-08-02 313-713-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DETROITZN5 MI
2023-08-02 331-295-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AURORA IL
2023-08-02 501-909-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTON AR
2023-08-02 534-221-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 575-296-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAS CRUCES NM
2023-08-02 608-707-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2023-08-02 608-815-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JANESVILLE WI
2023-08-02 608-902-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKEYVL WI
2023-08-02 734-579-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 YPSILANTI MI
2023-08-02 765-685-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 YORKTOWN IN
2023-08-02 810-317-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-317-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-317-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 872-344-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN03 IL
2023-08-02 872-344-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN03 IL
2023-08-02 920-638-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FONDDU LAC WI
2023-08-02 947-436-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2023-08-02 989-451-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAGINAW MI
2023-08-01 872-329-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL
2023-08-01 872-329-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL
2023-08-01 872-329-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL
2023-07-31 463-283-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENWOOD IN
2023-07-31 463-283-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENWOOD IN
2023-07-28 262-316-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2023-07-28 573-947-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRCH TREE MO
2023-07-28 573-947-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRCH TREE MO
2023-07-28 573-947-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRCH TREE MO
2023-07-28 573-947-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRCH TREE MO
2023-07-28 573-947-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRCH TREE MO
2023-07-28 573-947-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRCH TREE MO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.