NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

40 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 970
UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 20
ONVOY, LLC - CO 8
BANDWIDTH.COM CLEC, LLC - CO 3
T-MOBILE USA, INC. 2
EXIANT COMMUNICATIONS LLC 2
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
2021-09-23 970-743-8XXX 8000–8999Assigned COMMIO, LLC 939H FORTMORGAN CO
2021-09-23 970-753-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J FRUITA CO
2021-09-22 970-638-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J YAMPA CO
2021-09-22 970-839-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J SILT CO
2021-09-17 970-501-2XXX 2000–2999Assigned COMMIO, LLC 939H DURANGO CO
2021-09-17 970-501-3XXX 3000–3999Assigned COMMIO, LLC 939H DURANGO CO
2021-09-17 970-501-4XXX 4000–4999Assigned COMMIO, LLC 939H DURANGO CO
2021-09-17 970-794-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J GRANBY CO
2021-09-17 970-975-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MONTROSE CO
2021-09-16 970-634-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J JOHNSTMLKN CO
2021-09-16 970-793-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J GREELEY CO
2021-09-13 970-732-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 FT COLLINS CO
2021-09-13 970-760-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DILLON CO
2021-09-13 970-760-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DILLON CO
2021-09-13 970-973-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GLENWD SPG CO
2021-09-09 970-367-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J STEAMBOSPG CO
2021-09-08 970-538-0XXX 0000–0999Assigned TON80 COMMUNICATIONS, LLC 516J TELLURIDE CO
2021-09-08 970-561-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WINDSOR CO
2021-09-08 970-561-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WINDSOR CO
2021-09-08 970-795-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WINDSOR CO
2021-09-07 970-791-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 LOVELAND CO
2021-09-07 970-791-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 LOVELAND CO
2021-09-07 970-827-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J VAIL CO
2021-09-02 970-458-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J STERLING CO
2021-09-02 970-538-6XXX 6000–6999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F TELLURIDE CO
2021-09-02 970-740-9XXX 9000–9999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F STERLING CO
2021-09-02 970-933-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J DINOSAUR CO
2021-08-30 970-503-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GREELEY CO
2021-08-30 970-503-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GREELEY CO
2021-08-26 970-678-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J BASALT CO
2021-08-26 970-841-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F CRAIG CO
2021-08-26 970-866-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J LA SALLE CO
2021-08-24 970-722-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J FRASER CO
2021-08-24 970-784-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J GUNNISON CO
2021-08-23 970-762-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J STERLING CO
2021-08-19 970-333-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J DILLON CO
2021-08-19 970-647-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J JULESBURG CO
2021-08-19 970-772-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J GILCREST CO
2021-08-18 970-367-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J STEAMBOSPG CO
2021-08-18 970-742-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J ASPEN CO
2021-08-18 970-872-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J HOTCHKISS CO
2021-08-17 970-736-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J OAK CREEK CO
2021-08-17 970-743-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J FORTMORGAN CO
2021-08-17 970-784-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GUNNISON CO
2021-08-11 970-933-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DINOSAUR CO
2021-08-10 970-272-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MAYBELL CO
2021-08-09 970-546-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J DELTA CO
2021-08-09 970-746-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J BERTHOUD CO
2021-08-09 970-783-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GRAND JCT CO
2021-07-29 970-503-0XXX 0000–0999Assigned COMMIO, LLC 939H GREELEY CO

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.