NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

6 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 572
ONVOY, LLC - OK 5
T-MOBILE USA, 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
2021-08-04 572-600-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F MAUD OK
2021-07-29 572-202-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F ST LOUIS OK
2021-07-29 572-202-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ST LOUIS OK
2021-07-09 572-500-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F POCASSET OK
2021-07-09 572-888-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PIEDMONT OK
2021-07-09 572-999-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F GUTHRIE OK
2021-07-07 572-800-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F WELLSTON OK
2021-06-28 572-400-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H WANETTE OK
2021-06-28 572-529-4XXX 4000–4999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ALEX OK
2021-06-28 572-600-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F MAUD OK
2021-06-28 572-999-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H GUTHRIE OK
2021-06-17 572-800-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D WELLSTON OK
2021-06-07 572-529-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ALEX OK
2021-05-28 572-300-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F WEWOKA OK
2021-05-28 572-300-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F WEWOKA OK
2021-05-28 572-400-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F WANETTE OK
2021-05-28 572-465-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F WASHINGTON OK
2021-05-25 572-568-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C OKLA CITY OK
2021-05-18 572-444-0XXX 0000–0999Assigned TELNYX LLC 073H NICOMAPARK OK
2021-04-29 572-222-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F PERKINS OK
2021-04-29 572-400-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F WANETTE OK
2021-04-29 572-465-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F WASHINGTON OK
2021-04-29 572-999-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F GUTHRIE OK
2021-04-29 572-999-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F GUTHRIE OK
2021-04-29 572-999-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F GUTHRIE OK
2021-04-29 572-999-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F GUTHRIE OK
2021-04-16 572-910-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F OKLA CITY OK
2021-04-14 572-333-0XXX 0000–0999Assigned METROPCS, INC. 5562 PAULS VLY OK
2021-04-12 572-568-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J OKLA CITY OK
2021-04-01 572-333-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H PAULS VLY OK
2021-04-01 572-444-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H NICOMAPARK OK
2021-03-26 572-200-0XXX 0000–0999Assigned FRACTEL, LLC 965H FORT COBB OK
2021-03-26 572-200-2XXX 2000–2999Assigned FRACTEL, LLC 965H FORT COBB OK
2021-03-26 572-222-2XXX 2000–2999Assigned FRACTEL, LLC 965H PERKINS OK
2021-03-26 572-222-3XXX 3000–3999Assigned FRACTEL, LLC 965H PERKINS OK
2021-03-26 572-300-0XXX 0000–0999Assigned FRACTEL, LLC 965H WEWOKA OK
2021-03-26 572-300-3XXX 3000–3999Assigned FRACTEL, LLC 965H WEWOKA OK
2021-03-26 572-333-3XXX 3000–3999Assigned FRACTEL, LLC 965H PAULS VLY OK
2021-03-26 572-333-4XXX 4000–4999Assigned FRACTEL, LLC 965H PAULS VLY OK
2021-03-26 572-333-5XXX 5000–5999Assigned FRACTEL, LLC 965H PAULS VLY OK
2021-03-26 572-356-6XXX 6000–6999Assigned FRACTEL, LLC 965H MAYSVILLE OK
2021-03-26 572-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H MAYSVILLE OK
2021-03-26 572-356-8XXX 8000–8999Assigned FRACTEL, LLC 965H MAYSVILLE OK
2021-03-26 572-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H MAYSVILLE OK
2021-03-26 572-400-0XXX 0000–0999Assigned FRACTEL, LLC 965H WANETTE OK
2021-03-26 572-400-2XXX 2000–2999Assigned FRACTEL, LLC 965H WANETTE OK
2021-03-26 572-400-3XXX 3000–3999Assigned FRACTEL, LLC 965H WANETTE OK
2021-03-26 572-400-4XXX 4000–4999Assigned FRACTEL, LLC 965H WANETTE OK
2021-03-26 572-444-4XXX 4000–4999Assigned FRACTEL, LLC 965H NICOMAPARK OK
2021-03-26 572-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H WASHINGTON 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.