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
2014-06-30 918-992-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2014-06-24 918-290-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 STROUD OK
2014-06-18 918-982-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-06-18 918-982-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-06-18 918-982-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-06-18 918-982-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-06-13 918-238-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MIAMI OK
2014-06-13 918-268-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HENRYETTA OK
2014-06-13 918-322-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F KIEFER OK
2014-06-13 918-324-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F DEPEW OK
2014-06-13 918-358-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CLEVELAND OK
2014-06-13 918-777-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKMULGEE OK
2014-06-13 918-981-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PRYOR OK
2014-06-12 918-886-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2014-06-12 918-886-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2014-06-12 918-886-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2014-06-12 918-886-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2014-06-11 918-771-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRISTOW OK
2014-06-10 918-201-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 WAGONER OK
2014-06-06 918-896-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-896-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-896-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-896-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-896-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-896-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-896-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-934-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-06 918-934-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-06-05 918-416-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CATOOSA OK
2014-05-16 918-209-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F JENKS OK
2014-05-16 918-416-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CATOOSA OK
2014-05-16 918-923-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CLAREMORE OK
2014-05-15 918-401-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2014-05-15 918-609-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2014-05-15 918-928-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2014-05-13 918-705-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 VIAN OK
2014-05-12 918-803-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PRYOR OK
2014-05-08 918-203-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 FORTGIBSON OK
2014-05-08 918-219-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 AFTON OK
2014-05-08 918-308-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 HARTSHORNE OK
2014-05-08 918-487-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BRAGGS OK
2014-05-08 918-552-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 STIGLER OK
2014-05-08 918-604-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 PAWHUSKA OK
2014-05-08 918-789-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CHELSEA OK
2014-05-08 918-848-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 FAIRLAND OK
2014-05-08 918-947-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2014-05-06 918-558-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MCALESTER OK
2014-05-05 918-471-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILBURTON OK
2014-04-21 918-490-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F EUFAULA OK
2014-04-21 918-623-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKEMAH 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.