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
2013-02-04 918-238-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 MIAMI OK
2013-01-24 918-436-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C POCOLA OK
2013-01-22 918-325-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C MIAMI OK
2013-01-22 918-953-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 ADAIR OK
2013-01-17 918-964-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C GROVE OK
2013-01-17 918-984-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C TULSA OK
2013-01-16 918-839-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 POTEAU OK
2013-01-16 918-839-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 POTEAU OK
2013-01-10 918-306-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CUSHING OK
2012-12-27 918-306-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CUSHING OK
2012-12-04 918-376-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2012-12-04 918-376-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2012-12-04 918-928-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2012-11-27 918-824-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 PRYOR OK
2012-11-09 918-353-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 JAY OK
2012-11-09 918-353-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 JAY OK
2012-11-09 918-503-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MULDROW OK
2012-10-30 918-863-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2012-10-30 918-863-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2012-10-30 918-869-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2012-10-22 918-947-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2012-10-18 918-528-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 JENKS OK
2012-10-08 918-568-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2012-10-08 918-568-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2012-10-08 918-568-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2012-10-08 918-601-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NOWATA OK
2012-10-01 918-981-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 PRYOR OK
2012-09-28 918-928-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2012-09-28 918-928-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2012-09-26 918-325-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 MIAMI OK
2012-09-26 918-325-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 MIAMI OK
2012-09-24 918-617-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 EUFAULA OK
2012-09-20 918-505-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BROKENARRW OK
2012-09-19 918-937-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 KETCHUM OK
2012-09-04 918-947-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2012-08-27 918-863-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2012-08-27 918-863-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2012-08-27 918-863-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2012-08-27 918-921-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2012-08-27 918-921-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2012-08-13 918-886-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 BARTLESVL OK
2012-08-08 918-578-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SKIATOOK OK
2012-07-30 918-525-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C TAHLEQUAH OK
2012-07-27 918-205-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F COLLINSVL OK
2012-07-27 918-558-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MCALESTER OK
2012-07-27 918-608-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MUSKOGEE OK
2012-07-27 918-739-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CATOOSA OK
2012-07-27 918-884-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2012-07-27 918-884-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2012-07-26 918-373-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 PRYOR 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.