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
2008-07-15 918-314-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 GROVE OK
2008-07-07 918-895-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2008-07-01 918-995-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J JENKS OK
2008-06-24 918-895-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2008-06-23 918-933-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2008-06-23 918-933-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2008-06-23 918-960-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2008-06-20 918-933-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-06-20 918-933-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-05-28 918-994-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2008-05-27 918-578-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 SKIATOOK OK
2008-05-27 918-860-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 DEWEY OK
2008-05-22 918-919-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F MIAMI OK
2008-05-13 918-994-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW OK
2008-05-13 918-994-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW OK
2008-05-12 918-429-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 MCALESTER OK
2008-05-09 918-894-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2008-05-09 918-939-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2008-05-09 918-939-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2008-05-06 918-559-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 NOWATA OK
2008-05-06 918-919-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MIAMI OK
2008-05-05 918-248-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SAPULPA OK
2008-05-05 918-340-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2008-05-01 918-379-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CATOOSA OK
2008-05-01 918-615-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW OK
2008-05-01 918-739-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CATOOSA OK
2008-04-25 918-626-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CEDARS OK
2008-04-25 918-875-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MOFFETT OK
2008-04-25 918-919-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MIAMI OK
2008-04-17 918-814-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2008-04-17 918-971-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2008-04-04 918-208-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALLISAW OK
2008-04-04 918-764-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-04-04 918-779-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-04-04 918-779-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-26 918-899-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-26 918-933-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-26 918-933-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-24 918-201-4XXX 4000–4999Assigned CSC VOICE, LLC 612K WAGONER OK
2008-03-24 918-949-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-24 918-949-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-24 918-949-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-24 918-949-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-24 918-949-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-17 918-604-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PAWHUSKA OK
2008-03-17 918-829-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-17 918-946-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2008-03-14 918-490-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EUFAULA OK
2008-03-07 918-894-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2008-03-05 918-347-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SAPULPA 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.