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
2016-10-03 405-451-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F WELLSTON OK
2016-10-03 405-554-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F POCASSET OK
2016-10-03 405-554-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F POCASSET OK
2016-10-03 405-925-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F SPENCER OK
2016-10-03 405-925-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F SPENCER OK
2016-09-28 405-892-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICKASHA OK
2016-09-14 405-762-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 STILLWATER OK
2016-09-14 405-937-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 STILLWATER OK
2016-09-06 405-581-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 EARLSBORO OK
2016-09-01 405-480-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ANADARKO OK
2016-08-29 405-847-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BRITTON OK
2016-08-29 405-847-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BRITTON OK
2016-08-26 405-438-2XXX 2000–2999Assigned METROPCS, INC. 5562 OKLA CITY OK
2016-08-26 405-438-4XXX 4000–4999Assigned METROPCS, INC. 5562 OKLA CITY OK
2016-08-26 405-638-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ANADARKO OK
2016-08-24 405-855-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 MIDWEST CY OK
2016-08-22 405-776-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F EL RENO OK
2016-08-17 405-309-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HARRAH OK
2016-08-17 405-358-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PIEDMONT OK
2016-08-17 405-451-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F WELLSTON OK
2016-08-17 405-731-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MIDWEST CY OK
2016-08-12 405-654-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHANDLER OK
2016-07-21 405-400-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKLA CITY OK
2016-07-21 405-400-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKLA CITY OK
2016-07-21 405-400-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKLA CITY OK
2016-07-21 405-407-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F NOBLE OK
2016-07-21 405-438-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OKLA CITY OK
2016-07-21 405-832-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRITTON OK
2016-07-12 405-461-9XXX 9000–9999Assigned VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 ASHER OK
2016-07-12 405-617-9XXX 9000–9999Assigned METROPCS, INC. 5562 SHAWNEE OK
2016-07-07 405-977-6XXX 6000–6999Assigned METROPCS, INC. 5562 MOORE OK
2016-07-06 405-855-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 MIDWEST CY OK
2016-07-06 405-855-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 MIDWEST CY OK
2016-06-27 405-847-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BRITTON OK
2016-06-27 405-847-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BRITTON OK
2016-06-27 405-847-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BRITTON OK
2016-06-27 405-847-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BRITTON OK
2016-06-27 405-847-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BRITTON OK
2016-06-27 405-847-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BRITTON OK
2016-06-24 405-296-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CROMWELL OK
2016-06-23 405-451-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F WELLSTON OK
2016-06-23 405-451-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F WELLSTON OK
2016-06-23 405-937-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F STILLWATER OK
2016-06-22 405-554-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F POCASSET OK
2016-06-22 405-925-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F SPENCER OK
2016-06-22 405-925-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F SPENCER OK
2016-06-21 405-335-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F WYNNEWOOD OK
2016-06-21 405-335-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F WYNNEWOOD OK
2016-06-21 405-389-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F WETUMKA OK
2016-06-21 405-389-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F WETUMKA 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.