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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-11-02 580-263-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADILL OK
2007-11-02 580-307-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PERRY OK
2007-11-02 580-559-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA OK
2007-10-19 580-559-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 ADA OK
2007-10-03 580-319-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2007-10-01 580-660-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORDELL OK
2007-09-25 580-216-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WOODWARD OK
2007-09-25 580-919-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2007-09-18 580-799-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK CITY OK
2007-09-17 580-262-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLACKWELL OK
2007-09-17 580-509-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATOKA OK
2007-09-12 580-579-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DURANT OK
2007-08-14 580-478-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ENID OK
2007-08-14 580-579-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DURANT OK
2007-07-30 580-456-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ROFF OK
2007-07-30 580-832-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CORDELL OK
2007-07-30 580-928-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SAYRE OK
2007-07-25 580-224-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2007-07-24 580-372-8XXX 8000–8999Assigned PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC. 235C HUGO OK
2007-07-24 580-873-7XXX 7000–7999Assigned PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC. 235C FORTTOWSON OK
2007-07-24 580-982-8XXX 8000–8999Assigned PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC. 235C ANTLERS OK
2007-07-23 580-461-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 GUYMON OK
2007-07-23 580-475-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 DUNCAN OK
2007-07-12 580-216-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WOODWARD OK
2007-07-11 580-786-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 DUNCAN OK
2007-07-05 580-491-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2007-07-05 580-743-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUGO OK
2007-06-22 580-330-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 WEATHERFD OK
2007-06-19 580-647-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2007-06-19 580-647-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2007-06-11 580-799-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK CITY OK
2007-06-06 580-649-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALTUS OK
2007-06-01 580-228-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAURIKA OK
2007-06-01 580-606-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUNCAN OK
2007-06-01 580-606-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUNCAN OK
2007-06-01 580-641-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARLOW OK
2007-05-29 580-235-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ADA OK
2007-05-01 580-606-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 DUNCAN OK
2007-04-23 580-235-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA OK
2007-04-23 580-304-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2007-04-23 580-380-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DURANT OK
2007-04-16 580-478-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ENID OK
2007-04-10 580-540-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 ENID OK
2007-03-30 580-208-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 IDABEL OK
2007-03-23 580-319-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2007-03-23 580-713-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2007-03-23 580-713-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2007-03-12 580-279-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ADA OK
2007-03-02 580-514-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2007-03-01 580-475-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 DUNCAN 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.