NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

307 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 - 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
2020-04-15 571-413-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DULLES VA
2020-04-15 607-873-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELMIRA NY
2020-04-15 848-282-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELMAR NJ
2020-04-15 848-282-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELMAR NJ
2020-04-15 848-282-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELMAR NJ
2020-04-15 848-282-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELMAR NJ
2020-04-10 443-679-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SEVERN MD
2020-04-10 443-685-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SEVERN MD
2020-04-09 267-343-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN4 PA
2020-04-09 267-343-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN4 PA
2020-04-09 267-957-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN4 PA
2020-04-09 571-460-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-09 571-460-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-09 571-460-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-09 571-460-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-09 571-460-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-09 571-460-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-09 571-460-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-09 585-213-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WAYLAND NY
2020-04-09 603-451-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CONCORD NH
2020-04-09 603-451-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CONCORD NH
2020-04-09 603-451-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CONCORD NH
2020-04-08 223-229-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
2020-04-08 223-229-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
2020-04-08 302-277-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2020-04-08 302-277-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2020-04-08 302-277-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2020-04-08 302-277-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2020-04-08 302-277-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2020-04-08 302-277-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2020-04-08 410-210-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLENBURNIE MD
2020-04-08 410-210-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLENBURNIE MD
2020-04-08 410-210-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLENBURNIE MD
2020-04-08 410-863-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLENBURNIE MD
2020-04-08 410-863-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLENBURNIE MD
2020-04-08 484-745-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-04-08 484-745-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-04-08 484-745-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-04-08 484-745-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-04-08 484-745-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-04-08 484-745-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-04-07 215-706-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN38 PA
2020-04-07 215-882-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN38 PA
2020-04-07 215-902-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN38 PA
2020-04-07 267-495-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN38 PA
2020-04-07 332-228-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2020-04-07 332-228-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2020-04-07 332-228-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2020-04-07 413-379-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHERST MA
2020-04-07 413-379-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHERST MA

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.