NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 253
NEW CINGULAR WIRELESS PCS, LLC 217
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
2026-03-20 253-450-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMAWVLY WA
2026-02-06 253-419-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2025-12-05 253-440-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-11-07 253-362-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2025-10-03 253-419-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2025-09-05 253-430-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GIG HARBOR WA
2025-07-25 253-339-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMAWVLY WA
2025-07-14 253-427-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-07-14 253-427-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-07-14 253-427-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-07-14 253-427-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-07-14 253-427-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-03-07 253-362-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2025-02-10 253-418-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PUYALLUP WA
2025-02-10 253-418-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PUYALLUP WA
2025-01-14 253-210-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAHAM WA
2025-01-14 253-406-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAHAM WA
2025-01-14 253-406-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAHAM WA
2024-12-16 253-297-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMAWVLY WA
2024-11-26 253-420-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AUBURN WA
2024-11-26 253-420-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AUBURN WA
2024-11-26 253-420-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AUBURN WA
2024-11-08 253-417-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AUBURN WA
2024-11-01 253-264-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2024-10-15 253-419-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2024-10-15 253-518-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2024-08-23 253-406-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAHAM WA
2024-08-13 253-553-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AUBURN WA
2024-07-05 253-900-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GIG HARBOR WA
2024-06-28 253-408-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PUYALLUP WA
2024-03-21 253-401-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2024-03-21 253-401-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2024-03-21 253-401-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2023-12-22 253-354-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2023-12-22 253-532-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2023-12-11 253-452-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2023-11-27 253-878-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMAWVLY WA
2023-10-02 253-385-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAHAM WA
2023-08-11 253-900-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GIG HARBOR WA
2023-04-11 253-385-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAHAM WA
2023-04-11 253-452-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2023-04-11 253-452-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2023-02-17 253-362-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2022-10-27 253-340-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2022-07-19 253-364-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2022-06-22 253-340-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA

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.