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
2011-11-09 918-202-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CATOOSA OK
2011-11-09 918-218-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SPERRY OK
2011-11-09 918-218-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SPERRY OK
2011-11-09 918-218-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SPERRY OK
2011-11-09 918-218-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SPERRY OK
2011-11-09 918-218-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SPERRY OK
2011-11-09 918-235-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SALLISAW OK
2011-11-09 918-240-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-240-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-240-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-240-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-240-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-264-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-264-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-264-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-264-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-264-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-09 918-283-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CLAREMORE OK
2011-11-09 918-285-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C CUSHING OK
2011-11-09 918-443-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CLAREMORE OK
2011-11-09 918-443-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CLAREMORE OK
2011-11-09 918-515-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CATOOSA OK
2011-11-09 918-544-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C MIAMI OK
2011-11-09 918-674-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C QUAPAW OK
2011-11-09 918-675-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C COMMERCE OK
2011-11-09 918-738-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C RALSTON OK
2011-11-09 918-842-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SOCOFFEYVL OK
2011-11-09 918-848-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FAIRLAND OK
2011-11-09 918-923-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CLAREMORE OK
2011-11-09 918-942-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TALIHINA OK
2011-11-09 918-962-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SPIRO OK
2011-11-04 918-325-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 MIAMI OK
2011-11-04 918-849-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-04 918-849-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-11-04 918-849-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-28 918-209-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 JENKS OK
2011-10-28 918-209-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 JENKS OK
2011-10-28 918-209-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 JENKS OK
2011-10-28 918-995-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 JENKS OK
2011-10-28 918-995-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 JENKS OK
2011-10-24 918-442-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-442-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-442-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-442-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-442-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-730-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-856-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-856-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-24 918-925-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-10-21 918-219-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AFTON 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.