NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

10 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2003-07-29 405-227-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-227-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-227-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-227-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-227-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-227-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-246-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-246-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-246-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-29 405-264-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-07-23 405-295-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J EL RENO OK
2003-07-18 405-310-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J NORMAN OK
2003-07-16 405-285-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J EDMOND OK
2003-06-30 405-406-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-06-30 405-406-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-06-11 405-470-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BETHANY OK
2003-06-10 405-308-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-10 405-308-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2003-06-06 405-759-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MOORE OK
2003-05-07 405-335-2XXX 2000–2999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 WYNNEWOOD OK
2003-04-30 405-610-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MIDWEST CY OK
2003-04-25 405-285-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J EDMOND OK
2003-04-23 405-701-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J NORMAN OK
2003-03-27 405-406-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-03-27 405-406-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 OKLA CITY OK
2003-03-10 405-315-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-03-10 405-315-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2003-02-18 405-735-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MOORE OK
2003-02-10 405-933-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANADARKO OK
2002-12-12 405-253-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 NORMAN OK
2002-12-12 405-463-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BRITTON OK
2002-12-12 405-562-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 EDMOND OK
2002-12-12 405-622-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MIDWEST CY OK
2002-12-12 405-759-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MOORE OK
2002-11-05 405-583-2XXX 2000–2999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 MULHALL OK

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.