NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

307 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2014-09-17 978-395-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
2014-09-16 646-858-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-858-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-858-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-858-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-858-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-864-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-864-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-874-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-874-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 646-874-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2014-09-16 845-648-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN NY
2014-09-16 929-287-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2014-09-16 929-287-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2014-09-16 929-287-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2014-09-16 929-287-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2014-09-16 929-287-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2014-09-16 929-287-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2014-09-16 929-522-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2014-09-16 929-522-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2014-09-16 929-522-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2014-09-16 929-522-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2014-09-15 302-278-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2014-09-15 302-278-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2014-09-15 302-317-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2014-09-15 302-501-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2014-09-15 302-689-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2014-09-12 203-820-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2014-09-12 240-609-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CUMBERLAND MD
2014-09-12 240-609-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CUMBERLAND MD
2014-09-12 302-763-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOCKESSIN DE
2014-09-12 302-763-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOCKESSIN DE
2014-09-12 339-214-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWELL MA
2014-09-12 475-223-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2014-09-12 475-223-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2014-09-12 603-948-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NH
2014-09-12 703-345-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2014-09-12 703-478-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2014-09-12 860-357-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBRITAIN CT
2014-09-12 860-662-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ESSEX CT
2014-09-12 860-671-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CORNWALL CT
2014-09-12 860-876-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OLD SAYBRK CT
2014-09-12 860-910-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW LONDON CT
2014-09-12 908-274-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLAINFIELD NJ
2014-09-12 978-793-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MAYNARD MA
2014-09-11 401-363-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NARRAGNSTT RI
2014-09-11 516-666-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2014-09-11 516-784-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2014-09-11 571-261-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HAYMARKET VA
2014-09-11 571-446-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERNDON VA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.