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
2019-04-04 580-730-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-760-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-760-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-771-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-771-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-853-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-853-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-853-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-853-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-853-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-853-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2019-04-04 580-860-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DUNCAN OK
2019-04-04 580-860-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DUNCAN OK
2019-04-04 580-956-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-956-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-956-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-956-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-956-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-04 580-956-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2019-04-03 580-344-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-03 580-344-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-03 580-344-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-03 580-344-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-03 580-344-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-03 580-344-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ADA OK
2019-04-03 580-970-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-03 580-970-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-03 580-970-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-03 580-970-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-03 580-970-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-03 580-970-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2019-04-02 580-414-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J WEATHERFD OK
2019-04-01 580-377-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WOODWARD OK
2019-04-01 580-377-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WOODWARD OK
2019-04-01 580-377-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WOODWARD OK
2019-04-01 580-377-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WOODWARD OK
2019-04-01 580-808-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WOODWARD OK
2019-03-25 580-344-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ADA OK
2019-03-07 580-701-3XXX 3000–3999Assigned METROPCS, INC. 5562 ENID OK
2019-02-21 580-900-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J TUPELO OK
2019-01-24 580-800-0XXX 0000–0999Assigned FRACTEL, LLC 965H BLAIR OK
2019-01-21 580-448-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C SARKNSASCY OK
2018-12-26 580-200-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F CADDO OK
2018-12-26 580-200-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F CADDO OK
2018-12-26 580-232-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F CACHE OK
2018-12-26 580-232-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F CACHE OK
2018-12-26 580-258-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F COALGATE OK
2018-12-26 580-258-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F COALGATE OK
2018-12-26 580-275-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F CLINTON OK
2018-12-26 580-275-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F CLINTON 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.