NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 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 — NPA 539
NEW CINGULAR WIRELESS PCS, LLC - IL 4
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
2026-09-14 539-303-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2026-09-14 539-310-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILBURTON OK
2026-09-09 539-369-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2026-08-31 539-304-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GROVE OK
2026-08-17 539-278-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EUFAULA OK
2026-07-30 539-307-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKMULGEE OK
2026-07-10 539-315-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2026-07-09 539-354-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRISTOW OK
2026-06-26 539-269-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EUFAULA OK
2026-06-12 539-304-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GROVE OK
2026-06-12 539-315-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2025-12-24 539-370-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-24 539-370-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-12-11 539-307-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKMULGEE OK
2025-11-26 539-249-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALLISAW OK
2025-11-19 539-304-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GROVE OK
2025-10-22 539-310-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILBURTON OK
2025-10-16 539-369-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-07-16 539-306-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCALESTER OK
2025-07-16 539-306-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCALESTER OK
2025-07-16 539-315-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2025-07-16 539-315-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2025-07-16 539-354-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRISTOW OK
2025-07-16 539-354-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRISTOW OK
2025-07-16 539-368-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLESVL OK
2025-07-16 539-368-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLESVL OK
2025-07-09 539-231-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEWEY OK
2025-07-09 539-310-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILBURTON OK
2025-06-30 539-239-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2025-06-30 539-246-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2025-06-30 539-262-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2025-06-30 539-262-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2025-06-30 539-262-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2025-06-30 539-297-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2025-06-30 539-297-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2025-06-30 539-297-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2025-06-30 539-297-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2025-06-26 539-322-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-06-26 539-350-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-06-26 539-350-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-06-26 539-350-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-06-26 539-350-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2025-06-26 539-350-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK

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.