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
2026-01-07 572-270-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SHAWNEE OK
2025-12-31 572-236-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICKASHA OK
2025-12-31 572-358-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-12-31 572-358-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-12-31 572-358-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-12-29 572-279-1XXX 1000–1999Assigned E. RITTER COMMUNICATIONS, LLC 128L OKLA CITY OK
2025-12-24 572-726-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANADARKO OK
2025-12-19 572-997-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J KINGFISHER OK
2025-12-18 572-236-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F CHICKASHA OK
2025-12-18 572-472-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SEMINOLE OK
2025-12-17 572-277-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J EDMOND OK
2025-12-16 572-278-0XXX 0000–0999Assigned WAVENATION, LLC 700J OKLA CITY OK
2025-10-31 572-997-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 KINGFISHER OK
2025-10-22 572-250-5XXX 5000–5999Assigned HD CARRIER LLC 321J OKLA CITY OK
2025-10-22 572-250-6XXX 6000–6999Assigned HD CARRIER LLC 321J OKLA CITY OK
2025-10-22 572-250-7XXX 7000–7999Assigned HD CARRIER LLC 321J OKLA CITY OK
2025-09-24 572-200-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT COBB OK
2025-09-16 572-358-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-16 572-358-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-16 572-358-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-16 572-358-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-10 572-224-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J NORMAN OK
2025-09-04 572-269-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TECUMSEH OK
2025-08-28 572-216-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-08-28 572-216-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-08-27 572-246-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J OKLA CITY OK
2025-08-08 572-277-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2025-08-08 572-277-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2025-08-08 572-277-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2025-08-08 572-277-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2025-08-08 572-277-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2025-08-07 572-228-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-228-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-247-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-276-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-998-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-998-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-998-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-998-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-998-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2025-08-07 572-998-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY 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.