NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 580
ONVOY, LLC - OK 11
NEW CINGULAR WIRELESS PCS, LLC - IL 7
TELNYX LLC 1
T-MOBILE USA, INC. 1
OPENTACT INC. 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-06-04 580-358-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 FAIRMONT OK
2019-06-04 580-403-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 STRATFORD OK
2019-06-04 580-405-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ALLEN OK
2019-06-04 580-412-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 FAIRVIEW OK
2019-06-04 580-414-0XXX 0000–0999Assigned CSC WIRELESS, LLC 425J WEATHERFD OK
2019-06-04 580-416-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MORRISON OK
2019-06-04 580-422-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BILLINGS OK
2019-06-04 580-450-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 WALTERS OK
2019-06-04 580-635-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 HILLSDALE OK
2019-06-04 580-648-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OLUSTEE OK
2019-06-04 580-669-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 GLENCOE OK
2019-06-04 580-693-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 COMANCHE OK
2019-06-04 580-723-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 RED ROCK OK
2019-06-04 580-738-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 HEADRICK OK
2019-05-29 580-324-8XXX 8000–8999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ENID OK
2019-05-29 580-808-0XXX 0000–0999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H WOODWARD OK
2019-05-07 580-501-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ADA OK
2019-05-06 580-952-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HITCHCOCK OK
2019-04-25 580-379-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ALTUS OK
2019-04-24 580-681-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F PERRY OK
2019-04-24 580-951-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C LAWTON OK
2019-04-10 580-375-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-375-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-375-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-375-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-890-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-890-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-890-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-890-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-10 580-890-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2019-04-09 580-943-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DUNCAN OK
2019-04-08 580-501-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-08 580-501-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-08 580-501-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-08 580-501-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-08 580-501-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-08 580-501-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-08 580-501-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-08 580-643-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-08 580-643-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-08 580-643-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-08 580-643-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-08 580-643-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-04 580-644-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELK CITY OK
2019-04-04 580-644-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ELK CITY OK
2019-04-04 580-644-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELK CITY OK
2019-04-04 580-644-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELK CITY OK
2019-04-04 580-644-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELK CITY OK
2019-04-04 580-644-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELK CITY OK
2019-04-04 580-644-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELK 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.