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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2005-10-18 580-235-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ADA OK
2005-10-14 580-478-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ENID OK
2005-10-12 580-565-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KINGSTON OK
2005-10-11 580-583-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2005-10-11 580-583-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2005-10-03 580-387-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TISHOMINGO OK
2005-10-03 580-461-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 GUYMON OK
2005-10-03 580-461-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 GUYMON OK
2005-10-03 580-677-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADILL OK
2005-10-03 580-812-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARIETTA OK
2005-09-27 580-229-4XXX 4000–4999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 HEALDTON OK
2005-09-27 580-759-7XXX 7000–7999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 STRATFORD OK
2005-09-27 580-857-4XXX 4000–4999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 ALLEN OK
2005-09-21 580-304-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2005-09-19 580-749-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 PONCA CITY OK
2005-08-31 580-368-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 DAVIS OK
2005-08-29 580-670-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 BLACKWELL OK
2005-08-24 580-354-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 LAWTON OK
2005-08-15 580-861-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 RUSH SPG OK
2005-07-21 580-374-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 ELK CITY OK
2005-07-20 580-245-5XXX 5000–5999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 IDABEL OK
2005-07-19 580-364-5XXX 5000–5999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 ATOKA OK
2005-07-19 580-743-4XXX 4000–4999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 HUGO OK
2005-07-13 580-382-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2005-06-29 580-668-4XXX 4000–4999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 WILSON OK
2005-06-28 580-583-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2005-06-15 580-380-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DURANT OK
2005-06-06 580-583-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2005-05-23 580-235-4XXX 4000–4999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 ADA OK
2005-05-23 580-743-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUGO OK
2005-05-20 580-307-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 PERRY OK
2005-05-20 580-395-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 MEDFORD OK
2005-05-20 580-670-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 BLACKWELL OK
2005-05-20 580-749-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 PONCA CITY OK
2005-04-22 580-362-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWKIRK OK
2005-04-22 580-823-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TONKAWA OK
2005-04-01 580-701-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ENID OK
2005-03-24 580-370-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PERRY OK
2005-03-14 580-596-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CHEROKEE OK
2005-03-09 580-222-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2005-03-09 580-222-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2005-03-09 580-222-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2005-03-07 580-362-4XXX 4000–4999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 NEWKIRK OK
2005-03-07 580-458-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2005-03-07 580-628-8XXX 8000–8999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 TONKAWA OK
2005-03-03 580-371-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TISHOMINGO OK
2005-02-28 580-370-9XXX 9000–9999Assigned METROPCS, INC. 5562 PERRY OK
2005-02-23 580-230-0XXX 0000–0999Assigned METROPCS, INC. 5562 DURANT OK
2005-02-22 580-647-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2005-02-16 580-713-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 LAWTON 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.