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
2023-05-30 970-450-1XXX 1000–1999Assigned EON TELECOM, INC. 839J RANGELY CO
2023-05-30 970-501-1XXX 1000–1999Assigned EON TELECOM, INC. 839J DURANGO CO
2023-05-30 970-504-1XXX 1000–1999Assigned EON TELECOM, INC. 839J CARBONDALE CO
2023-05-30 970-595-1XXX 1000–1999Assigned EON TELECOM, INC. 839J ECKLEY CO
2023-05-30 970-709-5XXX 5000–5999Assigned EON TELECOM, INC. 839J GRAND LAKE CO
2023-05-30 970-722-3XXX 3000–3999Assigned EON TELECOM, INC. 839J FRASER CO
2023-05-30 970-805-2XXX 2000–2999Assigned EON TELECOM, INC. 839J MEAD CO
2023-05-30 970-896-3XXX 3000–3999Assigned EON TELECOM, INC. 839J STEAMBOSPG CO
2023-05-30 970-975-4XXX 4000–4999Assigned EON TELECOM, INC. 839J MONTROSE CO
2023-05-25 970-369-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J TELLURIDE CO
2023-05-24 970-887-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J GRANBY CO
2023-05-23 970-307-8XXX 8000–8999Assigned EON TELECOM, INC. 839J GRAND JCT CO
2023-05-23 970-807-7XXX 7000–7999Assigned EON TELECOM, INC. 839J ASPEN CO
2023-05-23 970-836-7XXX 7000–7999Assigned EON TELECOM, INC. 839J GREELEY CO
2023-05-23 970-851-1XXX 1000–1999Assigned EON TELECOM, INC. 839J FT COLLINS CO
2023-05-18 970-896-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 STEAMBOSPG CO
2023-05-15 970-807-0XXX 0000–0999Assigned TELNYX LLC 073H ASPEN CO
2023-04-27 970-979-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F EDWARDS CO
2023-04-20 970-838-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F WALDEN CO
2023-04-20 970-933-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DINOSAUR CO
2023-04-20 970-992-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DOVE CREEK CO
2023-04-11 970-307-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D GRAND JCT CO
2023-04-07 970-705-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F EAGLE CO
2023-04-06 970-602-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J JOHNSTMLKN CO
2023-03-28 970-772-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GILCREST CO
2023-02-28 970-441-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 FORTMORGAN CO
2023-02-16 970-740-0XXX 0000–0999Assigned METROPCS, INC. 5562 STERLING CO
2023-02-13 970-853-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 GYPSUM CO
2023-02-10 970-307-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2023-02-10 970-307-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2023-02-10 970-307-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2023-02-10 970-307-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2023-02-10 970-307-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2023-02-09 970-543-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 MESA CO
2023-02-09 970-563-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 IGNACIO CO
2023-02-09 970-582-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 PAGOSA SPG CO
2023-02-09 970-651-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 MAYBELL CO
2023-02-09 970-733-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 DOLORES CO
2023-02-09 970-738-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 NORWOOD CO
2023-02-09 970-809-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 RDFTHERLKS CO
2023-02-09 970-838-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 WALDEN CO
2023-02-09 970-843-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 ALLISON CO
2023-02-09 970-877-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 LAKE CITY CO
2023-02-09 970-933-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 DINOSAUR CO
2023-02-09 970-972-5XXX 5000–5999Assigned ALLO COMMUNICATIONS LLC 907K EATON CO
2023-02-09 970-992-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 DOVE CREEK CO
2023-02-09 970-993-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 MARVEL CO
2023-02-09 970-998-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 MCCOY CO
2023-01-18 970-851-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FT COLLINS CO
2023-01-12 970-295-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FT COLLINS 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.