NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 918
NEW CINGULAR WIRELESS PCS, LLC - IL 5
BOOST SUBSCRIBERCO L.L.C. 1
BANDWIDTH.COM CLEC, LLC - OK 1
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
2019-04-10 918-397-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2019-04-10 918-397-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2019-04-10 918-714-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-714-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2019-04-10 918-817-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SALLISAW OK
2019-04-10 918-817-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALLISAW OK
2019-04-09 918-908-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 STROUD OK
2019-04-09 918-908-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 STROUD OK
2019-04-09 918-908-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 STROUD OK
2019-04-09 918-908-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 STROUD OK
2019-04-09 918-908-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 STROUD OK
2019-04-08 918-308-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HARTSHORNE OK
2019-04-02 918-318-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-318-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-318-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-318-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-318-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-318-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-490-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EUFAULA OK
2019-04-02 918-490-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EUFAULA OK
2019-04-02 918-618-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EUFAULA OK
2019-04-02 918-618-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EUFAULA OK
2019-04-02 918-715-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-715-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-715-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-820-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-820-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2019-04-02 918-915-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VINITA OK
2019-04-02 918-915-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 VINITA OK
2019-04-02 918-915-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 VINITA OK
2019-04-02 918-915-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VINITA OK
2019-04-02 918-915-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VINITA OK
2019-04-02 918-915-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VINITA OK
2019-04-02 918-972-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DEWEY OK
2019-04-01 918-843-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHECOTAH OK
2019-04-01 918-843-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHECOTAH OK
2019-03-28 918-848-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRLAND OK
2019-03-27 918-319-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HENRYETTA OK
2019-03-27 918-650-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HENRYETTA OK
2019-03-15 918-507-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C STILWELL OK
2019-03-13 918-990-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRAGGS OK
2018-12-31 918-265-2XXX 2000–2999Assigned TELNYX LLC 073H BOKOSHE OK
2018-12-31 918-300-1XXX 1000–1999Assigned TELNYX LLC 073H TALIHINA 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.