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
2016-05-31 580-609-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F ALVA OK
2016-05-31 580-624-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F KINGSTON OK
2016-05-31 580-624-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F KINGSTON OK
2016-05-31 580-633-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ELDORADO OK
2016-05-31 580-648-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F OLUSTEE OK
2016-05-31 580-660-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F CORDELL OK
2016-05-31 580-666-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ROCKY OK
2016-05-31 580-706-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F MANGUM OK
2016-05-31 580-706-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F MANGUM OK
2016-05-31 580-738-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F HEADRICK OK
2016-05-31 580-757-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F RYAN OK
2016-05-31 580-789-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F BLACKWELL OK
2016-05-31 580-789-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F BLACKWELL OK
2016-05-31 580-846-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F LONE WOLF OK
2016-05-31 580-855-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F CARRIER OK
2016-05-31 580-896-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F COALGATE OK
2016-05-31 580-896-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F COALGATE OK
2016-05-31 580-952-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F HITCHCOCK OK
2016-05-23 580-500-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLINTON OK
2016-05-23 580-500-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLINTON OK
2016-05-23 580-500-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLINTON OK
2016-05-23 580-715-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLINTON OK
2016-05-17 580-219-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C TISHOMINGO OK
2016-05-06 580-485-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2016-05-06 580-485-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2016-05-06 580-485-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2016-05-06 580-485-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2016-04-29 580-277-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2016-04-21 580-540-5XXX 5000–5999Assigned METROPCS, INC. 5562 ENID OK
2016-03-30 580-495-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA OK
2016-03-30 580-495-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA OK
2016-03-30 580-495-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA OK
2016-03-29 580-330-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD OK
2016-03-22 580-263-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADILL OK
2016-03-21 580-238-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARIETTA OK
2016-03-17 580-413-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F RED ROCK OK
2016-03-17 580-413-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F RED ROCK OK
2016-03-17 580-725-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F BILLINGS OK
2016-03-17 580-725-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F BILLINGS OK
2016-03-16 580-394-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F GLENCOE OK
2016-03-16 580-394-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F GLENCOE OK
2016-03-16 580-403-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F STRATFORD OK
2016-03-16 580-403-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F STRATFORD OK
2016-03-16 580-416-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F MORRISON OK
2016-03-16 580-416-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F MORRISON OK
2016-03-16 580-952-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F HITCHCOCK OK
2016-03-16 580-952-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F HITCHCOCK OK
2016-03-16 580-992-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F NEWKIRK OK
2016-03-16 580-992-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F NEWKIRK OK
2016-03-15 580-715-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 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.