NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

21 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 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
Clear Download CSV ↓
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 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.