NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, all time — NPA 970
TELEPORT COMMUNICATIONS AMERICA, LLC - CO 43
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
2025-03-17 970-462-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 GRAND JCT CO
2024-07-11 970-894-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 BERTHOUD CO
2023-07-18 970-509-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 FRASER CO
2023-07-18 970-935-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 BRECKENRDG CO
2023-07-18 970-997-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 KREMMLING CO
2022-10-24 970-687-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 GYPSUM CO
2022-07-19 970-839-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 SILT CO
2021-12-23 970-239-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 TELLURIDE CO
2021-09-13 970-732-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 FT COLLINS CO
2021-06-27 970-671-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 COLLBRAN CO
2021-06-24 970-341-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 OLATHE CO
2021-06-23 970-661-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 BAYFIELD CO
2021-05-03 970-721-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 MEAD CO
2021-02-22 970-831-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 BRUSH CO
2021-01-27 970-855-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 EDWARDS CO
2020-10-27 970-715-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 MANCOS CO
2020-10-09 970-827-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 VAIL CO
2019-12-26 970-966-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 LOVELAND CO
2019-07-30 970-705-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 EAGLE CO
2019-01-18 970-546-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DELTA CO
2019-01-18 970-701-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 CRAIG CO
2019-01-18 970-747-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 FORTMORGAN CO
2019-01-15 970-666-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 FT COLLINS CO
2017-09-08 970-693-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 MEEKER CO
2017-04-20 970-452-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 ASPEN CO
2015-11-02 970-230-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 GLENWD SPG CO
2015-09-02 970-737-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 GILCREST CO
2015-08-21 970-364-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 GRANBY CO
2014-07-17 970-408-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 JOHNSTMLKN CO
2013-09-27 970-707-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 GUNNISON CO
2012-11-26 970-340-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 CARBONDALE CO
2012-11-15 970-235-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 ESTES PARK CO
2012-11-15 970-439-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 STEAMBOSPG CO
2012-11-15 970-458-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 STERLING CO
2012-11-15 970-545-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 WINDSOR CO
2012-11-15 970-615-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 MONTROSE CO
2012-11-15 970-725-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 HTSLPHRSPG CO
2012-11-14 970-251-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 CRESTEDBTE CO
2012-11-14 970-317-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DURANGO CO
2012-11-14 970-406-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DILLON CO
2012-11-14 970-516-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 CORTEZ CO
2010-06-02 970-541-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 LOVELAND CO
2003-11-25 970-372-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 FT COLLINS CO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.