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
2010-03-08 580-768-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 ARDMORE OK
2010-02-16 580-910-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HEALDTON OK
2010-01-12 580-699-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 LAWTON OK
2009-12-23 580-699-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 LAWTON OK
2009-12-18 580-229-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HEALDTON OK
2009-12-14 580-453-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ADA OK
2009-12-09 580-603-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 ENID OK
2009-11-16 580-239-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ATOKA OK
2009-11-10 580-821-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 ELK CITY OK
2009-10-21 580-736-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUNCAN OK
2009-10-16 580-715-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLINTON OK
2009-09-08 580-372-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 HUGO OK
2009-09-08 580-699-3XXX 3000–3999Assigned FIDELITY CABLEVISION, LLC 302F LAWTON OK
2009-09-08 580-919-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 LAWTON OK
2009-08-17 580-658-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARLOW OK
2009-07-27 580-736-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DUNCAN OK
2009-07-23 580-736-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUNCAN OK
2009-07-13 580-540-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F ENID OK
2009-07-13 580-540-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F ENID OK
2009-07-07 580-559-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ADA OK
2009-05-13 580-745-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 DURANT OK
2009-05-06 580-514-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2009-05-06 580-919-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 LAWTON OK
2009-04-29 580-616-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 ENID OK
2009-03-26 580-579-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 DURANT OK
2009-02-25 580-339-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ELK CITY OK
2009-02-20 580-302-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C WEATHERFD OK
2009-02-19 580-279-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 ADA OK
2009-02-17 580-279-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ADA OK
2009-02-10 580-786-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 DUNCAN OK
2009-02-09 580-215-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2009-02-06 580-558-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-02-06 580-558-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 LAWTON OK
2009-01-27 580-699-2XXX 2000–2999Assigned FIDELITY CABLEVISION, LLC 302F LAWTON OK
2009-01-12 580-490-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2009-01-09 580-448-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F SARKNSASCY OK
2008-12-29 580-540-8XXX 8000–8999Assigned CSC VOICE, LLC 612K ENID OK
2008-12-18 580-341-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2008-11-25 580-530-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 HOBART OK
2008-11-25 580-672-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MADILL OK
2008-11-21 580-736-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUNCAN OK
2008-11-20 580-301-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 ALTUS 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.