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
2015-11-11 580-807-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H MARLOW OK
2015-11-11 580-895-0XXX 0000–0999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H KONAWA OK
2015-10-27 580-265-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 STONEWALL OK
2015-10-21 580-760-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2015-10-21 580-760-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2015-10-19 580-308-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TONKAWA OK
2015-10-14 580-447-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ADA OK
2015-10-13 580-258-4XXX 4000–4999Assigned UNITED STATES CELLULAR - OK 6272 COALGATE OK
2015-10-12 580-609-2XXX 2000–2999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ALVA OK
2015-10-08 580-210-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 ELK CITY OK
2015-10-08 580-350-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 LAWTON OK
2015-10-07 580-219-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TISHOMINGO OK
2015-10-07 580-447-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ADA OK
2015-10-07 580-447-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ADA OK
2015-09-23 580-308-2XXX 2000–2999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H TONKAWA OK
2015-09-16 580-951-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2015-09-16 580-951-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2015-09-16 580-951-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2015-09-16 580-951-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2015-09-16 580-951-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2015-09-16 580-951-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2015-07-30 580-624-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 KINGSTON OK
2015-06-30 580-440-7XXX 7000–7999Assigned VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 KAW CITY OK
2015-06-23 580-951-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2015-06-23 580-951-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2015-06-19 580-270-9XXX 9000–9999Assigned WINDSTREAM OKLAHOMA, INC. 1965 VELMA OK
2015-06-19 580-744-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRVIEW OK
2015-06-19 580-756-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARLOW OK
2015-06-19 580-927-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COALGATE OK
2015-06-19 580-971-9XXX 9000–9999Assigned WINDSTREAM OKLAHOMA, INC. 1965 SNYDER OK
2015-06-01 580-382-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PONCA CITY OK
2015-05-27 580-825-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HITCHCOCK OK
2015-05-18 580-258-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C COALGATE OK
2015-05-14 580-596-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C CHEROKEE OK
2015-05-11 580-579-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 DURANT OK
2015-04-23 580-257-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TISHOMINGO OK
2015-04-23 580-662-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C RINGLING OK
2015-04-23 580-745-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2015-04-22 580-560-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUNCAN OK
2015-04-22 580-781-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SARKNSASCY OK
2015-04-21 580-857-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F ALLEN OK
2015-04-16 580-208-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H IDABEL OK
2015-04-16 580-210-5XXX 5000–5999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ELK CITY OK
2015-04-16 580-229-8XXX 8000–8999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H HEALDTON OK
2015-04-16 580-271-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ANTLERS OK
2015-04-16 580-290-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H WOODWARD OK
2015-04-16 580-297-8XXX 8000–8999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ENID OK
2015-04-16 580-307-8XXX 8000–8999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H PERRY OK
2015-04-16 580-309-8XXX 8000–8999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H CLINTON OK
2015-04-16 580-364-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ATOKA 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.