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
2021-02-09 970-772-2XXX 2000–2999Assigned ONVOY, LLC - CO 026D GILCREST CO
2021-02-09 970-772-3XXX 3000–3999Assigned ONVOY, LLC - CO 026D GILCREST CO
2021-02-09 970-849-1XXX 1000–1999Assigned ONVOY, LLC - CO 026D OURAY CO
2021-02-09 970-849-2XXX 2000–2999Assigned ONVOY, LLC - CO 026D OURAY CO
2021-02-09 970-855-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D EDWARDS CO
2021-02-08 970-831-0XXX 0000–0999Assigned TELNYX LLC 073H BRUSH CO
2021-02-05 970-575-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FRASER CO
2021-02-02 970-803-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 LOVELAND CO
2021-02-01 970-291-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 STEAMBOSPG CO
2021-01-27 970-855-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 EDWARDS CO
2021-01-04 970-551-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D MARVEL CO
2021-01-04 970-796-6XXX 6000–6999Assigned ONVOY, LLC - CO 026D OTIS CO
2021-01-04 970-796-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D OTIS CO
2020-12-30 970-816-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 CORTEZ CO
2020-12-21 970-855-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 EDWARDS CO
2020-12-15 970-701-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J CRAIG CO
2020-12-15 970-739-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J CORTEZ CO
2020-12-08 970-598-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PLATTEVL CO
2020-12-08 970-730-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRAND JCT CO
2020-12-08 970-730-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRAND JCT CO
2020-12-08 970-730-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRAND JCT CO
2020-12-08 970-783-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRAND JCT CO
2020-12-08 970-794-0XXX 0000–0999Assigned TELNYX LLC 073H GRANBY CO
2020-12-07 970-746-9XXX 9000–9999Assigned TELNYX LLC 073H BERTHOUD CO
2020-11-24 970-794-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D GRANBY CO
2020-11-24 970-794-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D GRANBY CO
2020-11-18 970-489-5XXX 5000–5999Assigned ONVOY, LLC - CO 026D SOCHEYENNE CO
2020-11-18 970-499-2XXX 2000–2999Assigned ONVOY, LLC - CO 026D SO LARAMIE CO
2020-11-18 970-499-3XXX 3000–3999Assigned ONVOY, LLC - CO 026D SO LARAMIE CO
2020-11-18 970-647-5XXX 5000–5999Assigned ONVOY, LLC - CO 026D JULESBURG CO
2020-11-18 970-647-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D JULESBURG CO
2020-11-05 970-747-2XXX 2000–2999Assigned TWILIO INTERNATIONAL, INC. 506J FORTMORGAN CO
2020-10-30 970-792-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FT COLLINS CO
2020-10-29 970-508-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DURANGO CO
2020-10-29 970-508-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DURANGO CO
2020-10-29 970-880-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DURANGO CO
2020-10-27 970-715-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 MANCOS CO
2020-10-09 970-647-0XXX 0000–0999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F JULESBURG CO
2020-10-09 970-694-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 FT COLLINS CO
2020-10-09 970-793-0XXX 0000–0999Assigned METROPCS, INC. 5562 GREELEY CO
2020-10-09 970-793-1XXX 1000–1999Assigned METROPCS, INC. 5562 GREELEY CO
2020-10-09 970-827-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 VAIL CO
2020-10-08 970-771-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 BRECKENRDG CO
2020-10-05 970-694-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FT COLLINS CO
2020-10-05 970-730-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRAND JCT CO
2020-10-01 970-500-6XXX 6000–6999Assigned ONVOY, LLC - CO 026D WELDONA CO
2020-10-01 970-636-6XXX 6000–6999Assigned ONVOY, LLC - CO 026D YAMPA CO
2020-09-30 970-238-9XXX 9000–9999Assigned ONVOY, LLC - CO 026D MARVEL CO
2020-09-30 970-398-4XXX 4000–4999Assigned ONVOY, LLC - CO 026D PAGOSA SPG CO
2020-09-30 970-436-3XXX 3000–3999Assigned ONVOY, LLC - CO 026D LAKE CITY 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.