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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2016-08-19 434-328-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHARLOTSVL VA
2016-08-19 540-609-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAUNTON VA
2016-08-19 540-935-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARRENTON VA
2016-08-19 571-373-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2016-08-19 757-364-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2016-08-18 475-439-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2016-08-18 475-470-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2016-08-18 860-671-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CORNWALL CT
2016-08-18 860-863-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHINGTN CT
2016-08-18 959-929-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIMNTIC CT
2016-08-15 315-940-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERKIMER NY
2016-08-15 518-570-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLATTSBG NY
2016-08-15 585-404-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HENRIETTA NY
2016-08-12 272-201-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STROUDSBG PA
2016-08-12 484-379-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BETHLEHEM PA
2016-08-12 484-379-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BETHLEHEM PA
2016-08-12 484-507-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FLEETWOOD PA
2016-08-12 484-757-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-08-12 484-757-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-08-12 484-757-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-08-12 484-757-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-08-12 484-757-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-08-12 551-268-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 UNION CITY NJ
2016-08-12 570-800-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCRANTON PA
2016-08-12 603-593-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAFFREY NH
2016-08-12 609-250-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PRINCETON NJ
2016-08-12 814-245-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ST MARYS PA
2016-08-12 814-406-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARREN PA
2016-08-10 484-587-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POTTSTOWN PA
2016-08-10 717-804-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RED LION PA
2016-08-09 802-917-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MONTPELIER VT
2016-08-09 802-917-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MONTPELIER VT
2016-08-09 857-419-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILTON MA
2016-08-08 570-502-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOCK HAVEN PA
2016-08-08 717-618-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANDISVL PA
2016-08-08 814-325-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STATECOLLG PA
2016-08-05 304-786-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIPLEY WV
2016-08-05 774-479-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOLDEN MA
2016-08-05 774-707-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2016-08-05 774-707-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2016-08-05 774-775-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WAREHAM MA
2016-08-05 856-739-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2016-08-05 856-739-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2016-08-03 681-433-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTON WV
2016-08-03 681-494-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BECKLEY WV
2016-08-02 551-264-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RAMSEY NJ
2016-08-02 732-955-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHRIVER NJ
2016-08-02 848-254-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN NJ
2016-08-02 862-285-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLOOMFIELD NJ
2016-08-02 908-304-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOMERVILLE NJ

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.