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
2016-02-01 207-206-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SANFORD ME
2016-02-01 631-305-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-02-01 631-305-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-02-01 631-305-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-02-01 631-305-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-01-29 215-692-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANSDALE PA
2016-01-29 475-292-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2016-01-29 475-343-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT
2016-01-29 484-456-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BETHLEHEM PA
2016-01-29 484-456-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BETHLEHEM PA
2016-01-29 484-456-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BETHLEHEM PA
2016-01-29 484-502-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-01-29 484-502-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-01-29 484-502-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-01-29 570-413-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JIM THORPE PA
2016-01-29 681-587-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2016-01-29 681-587-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2016-01-29 717-954-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
2016-01-29 717-954-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
2016-01-29 860-863-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHINGTN CT
2016-01-29 860-910-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW LONDON CT
2016-01-27 518-630-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCHENCTADY NY
2016-01-27 518-630-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCHENCTADY NY
2016-01-27 518-687-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TROY NY
2016-01-27 518-687-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TROY NY
2016-01-27 631-479-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2016-01-27 631-479-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2016-01-27 716-395-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER NY
2016-01-27 845-837-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MONROE NY
2016-01-27 914-314-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNTKISCO NY
2016-01-21 207-572-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINDHAM ME
2016-01-21 207-572-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINDHAM ME
2016-01-21 302-567-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2016-01-21 302-567-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2016-01-19 475-218-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANBURY CT
2016-01-19 475-218-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANBURY CT
2016-01-14 603-346-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLYMOUTH NH
2016-01-14 603-346-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLYMOUTH NH
2016-01-14 718-521-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
2016-01-14 718-668-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN14 NY
2016-01-14 718-883-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
2016-01-14 718-883-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
2016-01-14 718-925-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
2016-01-14 718-980-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN14 NY
2016-01-14 929-288-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2016-01-14 929-353-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN14 NY
2016-01-14 929-465-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
2016-01-14 929-500-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
2016-01-14 929-855-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2016-01-14 929-855-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY

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.