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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-07-07 580-422-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F BILLINGS OK
2021-07-07 580-850-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2021-07-07 580-850-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2021-07-07 580-850-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2021-07-07 580-850-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2021-07-07 580-850-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2021-07-07 580-873-0XXX 0000–0999Assigned TELNYX LLC 073H FORTTOWSON OK
2021-06-29 580-390-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 ELK CITY OK
2021-06-28 580-404-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ROFF OK
2021-06-28 580-485-4XXX 4000–4999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H PONCA CITY OK
2021-06-28 580-800-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H BLAIR OK
2021-06-28 580-812-8XXX 8000–8999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H MARIETTA OK
2021-06-28 580-847-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F BENNINGTON OK
2021-06-28 580-872-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H MADILL OK
2021-06-17 580-204-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F BOSWELL OK
2021-06-17 580-404-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F ROFF OK
2021-06-17 580-407-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D IDABEL OK
2021-06-07 580-209-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ANTLERS OK
2021-06-07 580-373-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BESSIE OK
2021-06-07 580-404-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ROFF OK
2021-06-07 580-422-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BILLINGS OK
2021-06-07 580-509-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ATOKA OK
2021-06-07 580-609-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ALVA OK
2021-06-07 580-847-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BENNINGTON OK
2021-06-04 580-681-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PERRY OK
2021-05-28 580-505-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F WOODWARD OK
2021-05-28 580-505-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F WOODWARD OK
2021-05-28 580-550-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F WALTERS OK
2021-05-28 580-587-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F RATTAN OK
2021-05-28 580-741-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F MEDFORD OK
2021-05-28 580-751-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F ROCKY OK
2021-05-28 580-782-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F MANGUM OK
2021-05-28 580-844-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F HITCHCOCK OK
2021-05-28 580-873-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F FORTTOWSON OK
2021-05-28 580-997-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F CHEROKEE OK
2021-05-24 580-722-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F NEWKIRK OK
2021-05-18 580-441-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ELMORECITY OK
2021-05-18 580-586-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H WAURIKA OK
2021-05-17 580-391-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CADDO OK
2021-05-17 580-391-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CADDO OK
2021-05-17 580-818-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2021-05-17 580-818-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2021-05-06 580-505-1XXX 1000–1999Assigned TELNYX LLC 073H WOODWARD OK
2021-05-06 580-668-9XXX 9000–9999Assigned TELNYX LLC 073H WILSON OK
2021-04-29 580-441-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ELMORECITY OK
2021-04-29 580-505-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F WOODWARD OK
2021-04-29 580-505-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F WOODWARD OK
2021-04-29 580-550-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F WALTERS OK
2021-04-29 580-587-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F RATTAN OK
2021-04-29 580-633-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F ELDORADO 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.