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
2005-12-20 405-496-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-20 405-496-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-20 405-496-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-19 405-455-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MIDWEST CY OK
2005-12-12 405-343-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-12 405-496-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-12 405-625-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-09 405-714-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STILLWATER OK
2005-12-08 405-600-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-12-08 405-600-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-12-06 405-334-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 STILLWATER OK
2005-12-06 405-819-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-06 405-821-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-06 405-822-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-01 405-200-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-12-01 405-547-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 PERKINS OK
2005-11-29 405-384-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BETHANY OK
2005-11-29 405-384-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BETHANY OK
2005-11-29 405-608-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BRITTON OK
2005-11-29 405-759-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MOORE OK
2005-11-28 405-335-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 WYNNEWOOD OK
2005-11-23 405-200-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-11-23 405-200-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-11-23 405-200-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-11-23 405-219-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-11-23 405-219-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-11-23 405-239-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-11-23 405-971-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-11-18 405-371-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-11-18 405-371-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-11-10 405-200-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2005-11-03 405-285-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J EDMOND OK
2005-10-10 405-301-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2005-10-03 405-220-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEMINOLE OK
2005-09-28 405-200-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-09-28 405-200-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-09-28 405-217-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 NORMAN OK
2005-09-28 405-217-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 NORMAN OK
2005-09-21 405-471-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2005-09-21 405-471-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2005-09-21 405-471-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2005-09-21 405-706-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-09-21 405-996-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-09-21 405-996-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-09-21 405-996-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2005-09-12 405-352-6XXX 6000–6999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 MINCO OK
2005-09-12 405-381-7XXX 7000–7999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 TUTTLE OK
2005-09-09 405-974-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2005-08-31 405-973-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-08-31 405-973-7XXX 7000–7999Assigned 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.