NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

6 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 572
ONVOY, LLC - OK 5
T-MOBILE USA, 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
2022-07-19 572-600-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MAUD OK
2022-06-29 572-726-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 ANADARKO OK
2022-06-03 572-204-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 CHANDLER OK
2022-05-26 572-363-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CHICKASHA OK
2022-05-18 572-522-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-05-18 572-522-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-05-18 572-568-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-05-03 572-910-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2022-04-27 572-204-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-273-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-04-27 572-273-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-04-27 572-273-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-04-27 572-273-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-04-27 572-273-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-04-27 572-910-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C OKLA CITY OK
2022-04-12 572-205-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2022-04-12 572-205-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2022-04-01 572-568-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-04-01 572-568-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-04-01 572-568-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-04-01 572-568-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-04-01 572-568-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-03-25 572-910-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F OKLA CITY OK
2022-03-24 572-205-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-03-24 572-205-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-03-24 572-205-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-03-12 572-500-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F POCASSET OK
2022-03-12 572-900-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MERIDIAN OK
2022-03-11 572-202-0XXX 0000–0999Assigned TON80 COMMUNICATIONS, LLC 516J ST LOUIS OK
2022-03-11 572-333-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J PAULS VLY OK
2022-03-11 572-777-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J HARRAH OK
2022-03-11 572-888-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J PIEDMONT OK
2022-03-10 572-666-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J EL RENO OK
2022-03-08 572-207-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C WELEETKA OK
2022-03-08 572-300-6XXX 6000–6999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H WEWOKA OK
2022-03-08 572-600-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H MAUD OK
2022-03-08 572-800-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H WELLSTON OK
2022-03-08 572-888-4XXX 4000–4999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H PIEDMONT OK
2022-03-07 572-205-4XXX 4000–4999Assigned TELNYX LLC 073H EDMOND OK
2022-03-02 572-363-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J CHICKASHA OK
2022-03-02 572-384-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J MOORE OK
2022-03-02 572-568-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2022-03-02 572-633-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J MIDWEST CY OK
2022-03-02 572-746-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BRITTON OK
2022-02-25 572-205-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2022-02-25 572-746-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J BRITTON 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.