NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

38 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
2020-01-23 970-966-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 LOVELAND CO
2020-01-23 970-977-3XXX 3000–3999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F VAIL CO
2020-01-17 970-287-4XXX 4000–4999Assigned TELNYX LLC 073H SILT CO
2020-01-14 970-730-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 GRAND JCT CO
2020-01-07 970-909-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 GREELEY CO
2020-01-06 970-914-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 VAIL CO
2020-01-06 970-914-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VAIL CO
2020-01-06 970-914-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 VAIL CO
2020-01-06 970-914-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 VAIL CO
2020-01-06 970-914-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VAIL CO
2019-12-26 970-966-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 LOVELAND CO
2019-12-19 970-742-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASPEN CO
2019-12-17 970-546-2XXX 2000–2999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F DELTA CO
2019-12-17 970-629-4XXX 4000–4999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F CRAIG CO
2019-12-17 970-666-9XXX 9000–9999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F FT COLLINS CO
2019-12-17 970-989-6XXX 6000–6999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F GLENWD SPG CO
2019-12-16 970-289-6XXX 6000–6999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F BRUSH CO
2019-12-16 970-771-6XXX 6000–6999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F BRECKENRDG CO
2019-12-16 970-816-2XXX 2000–2999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F CORTEZ CO
2019-12-13 970-452-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASPEN CO
2019-12-13 970-909-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2019-12-12 970-732-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 FT COLLINS CO
2019-12-09 970-452-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASPEN CO
2019-12-06 970-965-9XXX 9000–9999Assigned N.E. COLORADO CELLULAR, INC. 6874 YUMA CO
2019-12-04 970-782-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D SO BIG SPG CO
2019-11-19 970-507-2XXX 2000–2999Assigned ONVOY, LLC - CO 026D PAGOSA SPG CO
2019-11-12 970-489-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D SOCHEYENNE CO
2019-11-06 970-696-0XXX 0000–0999Assigned TELNYX LLC 073H RIDGWAY CO
2019-11-06 970-709-0XXX 0000–0999Assigned TELNYX LLC 073H GRAND LAKE CO
2019-11-05 970-666-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FT COLLINS CO
2019-10-18 970-844-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DURANGO CO
2019-10-17 970-200-0XXX 0000–0999Assigned METROPCS, INC. 5562 GRAND JCT CO
2019-10-15 970-404-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GLENWD SPG CO
2019-10-08 970-591-6XXX 6000–6999Assigned VONAGE AMERICA LLC 197D ESTES PARK CO
2019-10-08 970-973-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENWD SPG CO
2019-10-04 970-671-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D COLLBRAN CO
2019-09-26 970-289-3XXX 3000–3999Assigned ONVOY, LLC - CO 026D BRUSH CO
2019-09-23 970-717-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HAYDEN CO
2019-09-17 970-287-3XXX 3000–3999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F SILT CO
2019-08-29 970-966-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LOVELAND CO
2019-08-26 970-696-6XXX 6000–6999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F RIDGWAY CO
2019-08-26 970-753-1XXX 1000–1999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F FRUITA CO
2019-08-23 970-200-1XXX 1000–1999Assigned FASTTRACK COMMUNICATIONS, INC. - CO 330B GRAND JCT CO
2019-08-19 970-647-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D JULESBURG CO
2019-08-19 970-651-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D MAYBELL CO
2019-08-19 970-696-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D RIDGWAY CO
2019-08-19 970-696-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D RIDGWAY CO
2019-08-19 970-709-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D GRAND LAKE CO
2019-08-19 970-741-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D MEEKER CO
2019-08-19 970-849-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D OURAY 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.