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
2009-08-28 517-877-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LITCHFIELD MI
2009-08-28 616-761-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ORLEANS MI
2009-08-28 708-582-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2009-08-28 708-582-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2009-08-28 708-582-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2009-08-28 708-582-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2009-08-28 708-582-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2009-08-28 989-218-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HALE MI
2009-08-28 989-261-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICKERYVL MI
2009-08-28 989-265-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CRYSTAL MI
2009-08-28 989-313-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PINCONNING MI
2009-08-28 989-653-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMER MI
2009-08-27 231-225-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FREMONT MI
2009-08-27 231-527-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIG RAPIDS MI
2009-08-27 231-823-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STANWOOD MI
2009-08-27 231-856-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MORLEY MI
2009-08-27 269-244-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 THREERIVRS MI
2009-08-27 269-355-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALLEGAN MI
2009-08-27 269-408-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST JOSEPH MI
2009-08-27 269-422-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARODA MI
2009-08-27 269-423-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DECATUR MI
2009-08-27 269-430-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVUE MI
2009-08-27 269-432-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLON MI
2009-08-27 269-445-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CASSOPOLIS MI
2009-08-27 269-503-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STURGIS MI
2009-08-27 269-543-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GANGES MI
2009-08-27 269-586-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWBUFFALO MI
2009-08-27 269-674-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWRENCE MI
2009-08-27 269-697-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUCHANAN MI
2009-08-27 269-751-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON MI
2009-08-27 269-767-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHHAVEN MI
2009-08-27 269-778-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FULTON MI
2009-08-27 269-783-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWAGIAC MI
2009-08-27 269-919-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARCELLUS MI
2009-08-27 269-945-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HASTINGS MI
2009-08-27 419-258-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANTWERP OH
2009-08-27 419-263-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PAYNE OH
2009-08-27 419-518-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HICKSVILLE OH
2009-08-27 419-519-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRYAN OH
2009-08-27 419-737-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PIONEER OH
2009-08-27 517-224-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POTTERVL MI
2009-08-27 517-306-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUDSON MI
2009-08-27 517-441-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EATON RPD MI
2009-08-27 517-458-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MORENCI MI
2009-08-27 517-462-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLDWATER MI
2009-08-27 517-486-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLISSFIELD MI
2009-08-27 517-607-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HILLSDALE MI
2009-08-27 517-624-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE WITT MI
2009-08-27 517-626-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDLEDGE MI
2009-08-27 517-630-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALBION MI

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.