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
2007-01-17 405-464-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-464-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-464-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-464-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-464-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-464-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-618-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-618-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-618-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-17 405-618-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2007-01-09 405-506-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 BETHANY OK
2007-01-09 405-571-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 STILLWATER OK
2007-01-02 405-445-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2007-01-02 405-445-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2007-01-02 405-445-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2007-01-02 405-445-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2006-12-28 405-566-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRAGUE OK
2006-12-20 405-431-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-20 405-651-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-20 405-651-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-14 405-576-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J OKLA CITY OK
2006-12-14 405-576-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J OKLA CITY OK
2006-12-08 405-622-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 MIDWEST CY OK
2006-12-07 405-220-4XXX 4000–4999Assigned CSC VOICE, LLC 612K SEMINOLE OK
2006-12-07 405-257-4XXX 4000–4999Assigned CSC VOICE, LLC 612K WEWOKA OK
2006-12-07 405-320-5XXX 5000–5999Assigned CSC VOICE, LLC 612K CHICKASHA OK
2006-12-07 405-761-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-761-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-761-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-761-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-761-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-795-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-795-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-795-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-795-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-07 405-795-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2006-12-04 405-788-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SHAWNEE OK
2006-11-03 405-436-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-11-03 405-436-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-11-03 405-436-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-11-03 405-436-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-11-03 405-436-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-11-03 405-436-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-30 405-256-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MUSTANG OK
2006-10-30 405-261-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C WHEATLAND OK
2006-10-30 405-265-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C YUKON OK
2006-10-16 405-532-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-16 405-532-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-16 405-532-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-16 405-532-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 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.