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
2021-04-27 484-836-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2021-04-27 484-836-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2021-04-27 484-836-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2021-04-26 475-377-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WATERBURY CT
2021-04-26 540-734-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHANCELLOR VA
2021-04-26 540-734-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHANCELLOR VA
2021-04-26 540-913-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINCHESTER VA
2021-04-26 540-913-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINCHESTER VA
2021-04-26 540-913-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINCHESTER VA
2021-04-26 551-316-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLIFFSIDE NJ
2021-04-26 551-786-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 UNION CITY NJ
2021-04-26 571-668-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2021-04-26 571-668-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2021-04-26 571-668-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2021-04-26 860-316-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN CT
2021-04-26 860-316-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN CT
2021-04-26 862-370-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SO ORANGE NJ
2021-04-26 862-782-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-26 862-782-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-26 862-782-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-26 862-782-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-26 862-782-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-26 862-782-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-26 862-782-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-26 862-782-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASSAIC NJ
2021-04-23 681-578-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ARNOLDSBG WV
2021-04-23 681-578-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ARNOLDSBG WV
2021-04-22 276-601-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GALAX VA
2021-04-21 603-519-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EXETER NH
2021-04-21 603-519-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EXETER NH
2021-04-20 551-815-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIDGEWOOD NJ
2021-04-20 551-815-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIDGEWOOD NJ
2021-04-20 609-791-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-791-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-791-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-803-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-803-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-803-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-803-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-803-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-843-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-912-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-912-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 609-912-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2021-04-20 856-388-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSTN NJ
2021-04-20 862-361-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NJ
2021-04-20 862-361-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NJ
2021-04-20 862-361-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NJ
2021-04-20 862-361-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NJ
2021-04-20 862-361-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NJ

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.