NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 203
NEW CINGULAR WIRELESS PCS, LLC - DC 261
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
2025-02-07 203-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON CT
2016-01-11 203-390-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW HAVEN CT
2016-01-11 203-390-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW HAVEN CT
2016-01-07 203-571-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTPORT CT
2016-01-07 203-571-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTPORT CT
2015-10-16 203-349-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTPORT CT
2015-08-04 203-682-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTPORT CT
2014-11-07 203-518-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WATERBURY CT
2014-09-22 203-274-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2014-09-22 203-356-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2014-09-12 203-820-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2014-04-17 203-447-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON CT
2014-04-17 203-604-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2014-04-17 203-613-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2014-04-17 203-694-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT
2013-10-09 203-970-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2013-03-08 203-491-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWTOWN CT
2013-01-17 203-343-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2013-01-17 203-343-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2013-01-17 203-628-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANBURY CT
2012-12-20 203-970-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2012-12-20 203-970-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2012-10-11 203-343-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2012-08-23 203-957-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2012-03-28 203-514-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT
2012-03-28 203-514-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT
2012-01-18 203-343-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2012-01-18 203-343-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2012-01-12 203-832-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2011-11-16 203-945-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2011-11-16 203-945-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2011-09-22 203-997-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2011-09-22 203-997-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2011-09-22 203-997-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2011-08-17 203-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT
2011-08-17 203-600-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT
2011-08-17 203-635-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTPORT CT
2011-06-28 203-945-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2011-06-28 203-945-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2011-06-08 203-707-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WATERBURY CT
2011-06-08 203-707-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WATERBURY CT
2011-06-08 203-707-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WATERBURY CT
2011-06-07 203-609-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2011-06-07 203-609-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2011-06-07 203-609-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2011-06-07 203-703-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2011-06-06 203-402-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON CT
2011-02-28 203-212-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEPORT CT
2011-02-28 203-360-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEPORT CT
2011-02-28 203-501-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANBURY CT

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.