NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 405
ONVOY, LLC - OK 7
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
OPENTACT INC. 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
2004-03-16 405-521-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-16 405-556-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-16 405-558-1XXX 1000–1999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-16 405-684-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-16 405-812-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-16 405-922-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-15 405-283-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 PIEDMONT OK
2004-03-15 405-293-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 GUTHRIE OK
2004-03-15 405-294-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 NOBLE OK
2004-03-15 405-295-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 EL RENO OK
2004-03-12 405-201-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-1XXX 1000–1999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-4XXX 4000–4999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-12 405-201-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 OKLA CITY OK
2004-03-09 405-265-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J YUKON OK
2004-02-24 405-684-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2004-02-24 405-684-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2004-02-02 405-378-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MOORE OK
2004-01-23 405-684-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2004-01-21 405-285-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J EDMOND OK
2003-12-22 405-406-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-11-14 405-416-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-416-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-14 405-802-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-11-11 405-933-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANADARKO OK
2003-10-14 405-406-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-10-14 405-406-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-10-14 405-406-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-09-05 405-406-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-09-04 405-610-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MIDWEST CY OK
2003-08-19 405-384-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BETHANY OK
2003-08-13 405-320-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICKASHA OK
2003-07-31 405-395-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SHAWNEE OK
2003-07-31 405-494-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 YUKON OK
2003-07-29 405-227-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-227-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY 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.