NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 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
2022-11-25 572-200-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F FORT COBB OK
2022-11-22 572-202-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F ST LOUIS OK
2022-11-22 572-215-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F WAYNE OK
2022-11-22 572-220-5XXX 5000–5999Assigned COMMIO, LLC 939H STILLWATER OK
2022-11-22 572-666-0XXX 0000–0999Assigned METROPCS, INC. 5562 EL RENO OK
2022-11-22 572-666-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL RENO OK
2022-11-16 572-220-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F STILLWATER OK
2022-11-16 572-220-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F STILLWATER OK
2022-11-08 572-206-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-11-08 572-206-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-11-08 572-206-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-11-08 572-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-11-08 572-206-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2022-10-25 572-206-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2022-10-19 572-746-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRITTON OK
2022-10-19 572-746-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRITTON OK
2022-10-18 572-900-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MERIDIAN OK
2022-10-17 572-400-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C WANETTE OK
2022-10-14 572-529-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C ALEX OK
2022-10-11 572-867-5XXX 5000–5999Assigned COMMIO, LLC 939H MOORE OK
2022-10-11 572-867-6XXX 6000–6999Assigned COMMIO, LLC 939H MOORE OK
2022-10-11 572-867-7XXX 7000–7999Assigned COMMIO, LLC 939H MOORE OK
2022-10-11 572-867-8XXX 8000–8999Assigned COMMIO, LLC 939H MOORE OK
2022-10-04 572-206-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J OKLA CITY OK
2022-09-27 572-208-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-09-27 572-208-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-09-27 572-273-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-09-27 572-273-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-09-27 572-273-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-09-14 572-363-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICKASHA OK
2022-08-24 572-746-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRITTON OK
2022-08-19 572-633-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C MIDWEST CY OK
2022-08-06 572-220-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STILLWATER OK
2022-08-05 572-273-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BETHANY OK
2022-08-02 572-746-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRITTON OK
2022-08-02 572-746-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRITTON OK
2022-08-02 572-746-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F BRITTON OK
2022-07-26 572-207-0XXX 0000–0999Assigned TELNYX LLC 073H WELEETKA OK
2022-07-25 572-208-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-07-25 572-208-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-07-20 572-275-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY OK
2022-07-20 572-275-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H OKLA CITY 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.