NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

307 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 - DC 307
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
2018-11-05 862-335-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ORANGE NJ
2018-11-05 862-335-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ORANGE NJ
2018-11-02 272-215-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSPT PA
2018-11-02 443-936-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKRIDGE MD
2018-10-30 603-506-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER NH
2018-10-30 603-506-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER NH
2018-10-29 207-203-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GARDINER ME
2018-10-29 207-270-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEXTER ME
2018-10-29 207-291-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARRISON ME
2018-10-29 207-305-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FARMINGTON ME
2018-10-29 207-372-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TENANTSHBR ME
2018-10-29 207-382-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FREEDOM ME
2018-10-29 207-429-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARS HILL ME
2018-10-29 207-463-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ISLAND FLS ME
2018-10-29 207-466-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCKLAND ME
2018-10-29 207-562-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DIXFIELD ME
2018-10-29 207-605-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERMON ME
2018-10-29 207-728-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MADAWASKA ME
2018-10-29 207-790-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALDOBORO ME
2018-10-26 607-340-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ENDICOTT NY
2018-10-26 716-429-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSVL NY
2018-10-24 207-493-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CARIBOU ME
2018-10-24 207-495-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELGRADE ME
2018-10-24 207-505-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELFAST ME
2018-10-24 603-503-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER NH
2018-10-24 609-627-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PRINCETON NJ
2018-10-18 856-739-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2018-10-18 908-427-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLAINFIELD NJ
2018-10-18 973-281-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLOOMFIELD NJ
2018-10-18 973-281-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLOOMFIELD NJ
2018-10-17 410-892-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLENBURNIE MD
2018-10-17 443-734-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SEVERN MD
2018-10-17 443-879-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNDALK MD
2018-10-17 445-999-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARLEYSVL PA
2018-10-17 516-615-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2018-10-17 631-690-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2018-10-17 929-496-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN04 NY
2018-10-16 804-956-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2018-10-11 518-902-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCHENCTADY NY
2018-10-11 585-439-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HENRIETTA NY
2018-10-11 914-291-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN03 NY
2018-10-11 914-987-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OSSINING NY
2018-10-11 929-219-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN04 NY
2018-10-10 757-612-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2018-10-10 757-629-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2018-10-10 959-282-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2018-10-08 202-892-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN1 DC
2018-10-08 202-919-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN1 DC
2018-10-08 202-919-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN1 DC
2018-10-08 475-255-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.