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
2008-11-12 580-754-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 GUYMON OK
2008-11-10 580-418-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 FREDERICK OK
2008-11-06 580-456-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ROFF OK
2008-11-05 580-264-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HEALDTON OK
2008-11-05 580-319-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ARDMORE OK
2008-11-05 580-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ENID OK
2008-11-05 580-368-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F DAVIS OK
2008-11-05 580-440-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F KAW CITY OK
2008-11-05 580-530-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HOBART OK
2008-11-05 580-609-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ALVA OK
2008-11-05 580-641-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MARLOW OK
2008-11-05 580-672-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MADILL OK
2008-11-05 580-713-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F LAWTON OK
2008-11-05 580-749-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PONCA CITY OK
2008-11-05 580-786-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F DUNCAN OK
2008-11-05 580-789-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BLACKWELL OK
2008-11-05 580-823-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TONKAWA OK
2008-11-05 580-861-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F RUSH SPG OK
2008-11-05 580-925-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F KONAWA OK
2008-11-05 580-982-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F ANTLERS OK
2008-10-21 580-379-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 ALTUS OK
2008-10-21 580-379-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 ALTUS OK
2008-10-20 580-752-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 HOBART OK
2008-10-17 580-215-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWTON OK
2008-10-14 580-786-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DUNCAN OK
2008-10-13 580-817-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TEXHOMA OK
2008-09-24 580-277-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2008-09-23 580-301-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ALTUS OK
2008-09-19 580-242-9XXX 9000–9999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 ENID OK
2008-09-19 580-475-9XXX 9000–9999Assigned CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 4630 DUNCAN OK
2008-09-05 580-279-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA OK
2008-09-05 580-919-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 LAWTON OK
2008-09-03 580-372-7XXX 7000–7999Assigned PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC. 235C HUGO OK
2008-09-02 580-890-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2008-08-15 580-616-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 ENID OK
2008-08-15 580-616-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 ENID OK
2008-08-15 580-616-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 ENID OK
2008-08-15 580-616-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 ENID OK
2008-08-07 580-919-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2008-07-28 580-275-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CLINTON OK
2008-07-28 580-641-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MARLOW OK
2008-07-17 580-352-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONCA CITY OK
2008-07-17 580-565-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KINGSTON OK
2008-07-07 580-475-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUNCAN OK
2008-06-30 580-319-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARDMORE OK
2008-06-13 580-303-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ELK CITY OK
2008-05-29 580-461-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 GUYMON OK
2008-05-29 580-461-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 GUYMON OK
2008-05-22 580-366-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F ENID OK
2008-05-22 580-366-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ENID 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.