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
2011-01-12 918-315-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SALLISAW OK
2011-01-12 918-772-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TAHLEQUAH OK
2011-01-12 918-924-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-01-12 918-924-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-01-11 918-208-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALLISAW OK
2011-01-11 918-616-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2011-01-11 918-729-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DRUMRIGHT OK
2011-01-11 918-924-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-01-07 918-212-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2011-01-07 918-497-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-764-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-764-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-924-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-924-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-924-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-924-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-924-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2011-01-07 918-932-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-932-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-932-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-01-07 918-932-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2010-12-20 918-932-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2010-12-20 918-932-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2010-12-16 918-923-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CLAREMORE OK
2010-11-22 918-293-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2010-11-22 918-304-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OKMULGEE OK
2010-11-22 918-382-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2010-11-22 918-430-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2010-11-22 918-551-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2010-11-22 918-584-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2010-11-22 918-592-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2010-11-19 918-310-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2010-11-19 918-878-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-11-12 918-815-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2010-11-04 918-203-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FORTGIBSON OK
2010-11-04 918-288-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SPERRY OK
2010-11-04 918-297-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C HARTSHORNE OK
2010-11-04 918-304-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C OKMULGEE OK
2010-11-04 918-319-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C HENRYETTA OK
2010-11-04 918-321-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C KIEFER OK
2010-11-04 918-373-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C PRYOR OK
2010-11-04 918-532-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C COPAN OK
2010-11-04 918-537-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C MUSKOGEE OK
2010-11-04 918-708-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TAHLEQUAH OK
2010-11-04 918-713-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C VINITA OK
2010-11-04 918-716-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C OKEMAH OK
2010-11-04 918-729-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C DRUMRIGHT OK
2010-11-04 918-762-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PAWNEE OK
2010-11-04 918-772-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TAHLEQUAH OK
2010-11-04 918-789-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C CHELSEA 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.