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
2023-08-03 580-600-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CALERA OK
2023-07-27 580-400-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2023-07-27 580-850-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-07-27 580-850-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-07-27 580-850-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-07-27 580-850-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-07-14 580-360-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F LAWTON OK
2023-07-14 580-400-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F LAWTON OK
2023-07-14 580-615-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F DURANT OK
2023-07-14 580-615-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F DURANT OK
2023-07-14 580-615-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F DURANT OK
2023-07-14 580-615-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F DURANT OK
2023-07-14 580-707-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F ENID OK
2023-07-14 580-707-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F ENID OK
2023-07-14 580-707-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ENID OK
2023-07-14 580-707-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F ENID OK
2023-07-14 580-707-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F ENID OK
2023-07-14 580-865-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F PONCA CITY OK
2023-07-14 580-865-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F PONCA CITY OK
2023-07-14 580-865-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F PONCA CITY OK
2023-07-14 580-865-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F PONCA CITY OK
2023-07-14 580-865-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F PONCA CITY OK
2023-07-14 580-880-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F ALTUS OK
2023-07-14 580-880-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F ALTUS OK
2023-07-14 580-880-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F ALTUS OK
2023-07-14 580-880-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F ALTUS OK
2023-07-14 580-880-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F ALTUS OK
2023-07-14 580-949-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F ADA OK
2023-07-14 580-949-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ADA OK
2023-07-14 580-949-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F ADA OK
2023-07-14 580-949-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F ADA OK
2023-07-14 580-949-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F ADA OK
2023-07-14 580-990-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F DUNCAN OK
2023-07-14 580-990-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F DUNCAN OK
2023-07-14 580-990-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F DUNCAN OK
2023-07-14 580-990-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F DUNCAN OK
2023-07-14 580-990-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F DUNCAN OK
2023-07-12 580-446-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J BRECKENRDG OK
2023-07-12 580-551-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J ENID OK
2023-07-12 580-772-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J WEATHERFD OK
2023-07-12 580-929-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J KONAWA OK
2023-07-10 580-257-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F TISHOMINGO OK
2023-07-10 580-331-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J CLINTON OK
2023-07-10 580-448-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F SARKNSASCY OK
2023-07-10 580-589-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F SO COLDWTR OK
2023-07-07 580-508-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TALOGA OK
2023-07-05 580-874-0XXX 0000–0999Assigned TELNYX LLC 073H KREMLIN OK
2023-06-29 580-818-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F ARDMORE OK
2023-05-31 580-969-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 HUGO OK
2023-05-18 580-662-0XXX 0000–0999Assigned TELNYX LLC 073H RINGLING 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.