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
2008-01-16 970-237-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 FT COLLINS CO
2008-01-16 970-237-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 FT COLLINS CO
2008-01-16 970-962-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D LOVELAND CO
2008-01-07 970-534-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2007-12-20 970-237-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 FT COLLINS CO
2007-12-20 970-237-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 FT COLLINS CO
2007-12-20 970-456-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GLENWD SPG CO
2007-12-20 970-456-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GLENWD SPG CO
2007-12-12 970-306-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAIL CO
2007-12-06 970-764-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DURANGO CO
2007-12-06 970-764-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DURANGO CO
2007-11-20 970-688-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAIL CO
2007-11-16 970-518-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GREELEY CO
2007-11-16 970-712-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2007-11-16 970-712-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2007-11-16 970-712-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2007-11-16 970-964-2XXX 2000–2999Assigned QWEST CORPORATION 9636 MONTROSE CO
2007-11-07 970-533-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MANCOS CO
2007-10-18 970-819-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 STEAMBOSPG CO
2007-10-16 970-676-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D DOLORES CO
2007-10-12 970-433-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAND JCT CO
2007-10-12 970-619-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 LOVELAND CO
2007-10-12 970-620-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 CRAIG CO
2007-10-12 970-901-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 MONTROSE CO
2007-10-12 970-903-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DURANGO CO
2007-10-08 970-404-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GLENWD SPG CO
2007-10-05 970-403-1XXX 1000–1999Assigned FASTTRACK COMMUNICATIONS, INC. - CO 330B DURANGO CO
2007-09-18 970-584-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2007-09-18 970-987-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENWD SPG CO
2007-09-18 970-987-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENWD SPG CO
2007-09-13 970-438-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PALISADE CO
2007-09-13 970-556-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 FT COLLINS CO
2007-09-13 970-692-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 FT COLLINS CO
2007-09-13 970-692-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 FT COLLINS CO
2007-09-11 970-712-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2007-09-11 970-712-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2007-08-30 970-529-7XXX 7000–7999Assigned FASTTRACK COMMUNICATIONS, INC. - CO 330B CORTEZ CO
2007-08-29 970-518-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GREELEY CO
2007-08-29 970-589-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2007-08-29 970-987-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GLENWD SPG CO
2007-08-29 970-987-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GLENWD SPG CO
2007-08-16 970-589-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J GRAND JCT CO
2007-08-13 970-480-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F ESTES PARK CO
2007-08-06 970-489-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D SOCHEYENNE CO
2007-08-06 970-499-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D SO LARAMIE CO
2007-08-03 970-639-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FRUITA CO
2007-08-02 970-570-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CORTEZ CO
2007-08-02 970-570-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CORTEZ CO
2007-08-01 970-424-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRAND JCT CO
2007-08-01 970-424-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRAND JCT 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.