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
2012-03-19 970-724-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F KREMMLING CO
2012-03-16 970-775-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LOVELAND CO
2012-02-23 970-646-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOVELAND CO
2012-02-15 970-646-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 LOVELAND CO
2012-02-14 970-233-6XXX 6000–6999Assigned ONVOY, LLC - CO 026D COLLBRAN CO
2012-02-13 970-549-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRAND JCT CO
2012-02-09 970-355-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D GLENWD SPG CO
2012-02-09 970-444-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D BAYFIELD CO
2012-02-09 970-717-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D HAYDEN CO
2012-02-08 970-648-7XXX 7000–7999Assigned FASTTRACK COMMUNICATIONS, INC. - CO 330B GUNNISON CO
2012-02-08 970-744-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 LOVELAND CO
2012-02-06 970-642-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GUNNISON CO
2012-01-27 970-315-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 ASPEN CO
2012-01-27 970-318-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CO 6118 RIDGWAY CO
2012-01-24 970-717-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F HAYDEN CO
2012-01-20 970-235-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F ESTES PARK CO
2012-01-10 970-805-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F MEAD CO
2012-01-05 970-251-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F CRESTEDBTE CO
2011-12-19 970-646-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOVELAND CO
2011-12-16 970-878-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F MEEKER CO
2011-12-13 970-645-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F WELDONA CO
2011-12-13 970-847-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F HILLROSE CO
2011-12-08 970-707-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GUNNISON CO
2011-12-06 970-638-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F YAMPA CO
2011-12-06 970-736-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F OAK CREEK CO
2011-12-05 970-855-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J EDWARDS CO
2011-12-02 970-286-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF COLORADO, LLC - CO 4574 FT COLLINS CO
2011-11-28 970-541-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F LOVELAND CO
2011-11-28 970-805-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 3467 MEAD CO
2011-11-18 970-628-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J GRAND JCT CO
2011-11-15 970-646-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOVELAND CO
2011-11-15 970-646-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOVELAND CO
2011-11-15 970-968-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DILLON CO
2011-11-11 970-616-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GREELEY CO
2011-11-08 970-478-4XXX 4000–4999Assigned FASTTRACK COMMUNICATIONS, INC. - CO 330B NORWOOD CO
2011-11-08 970-826-8XXX 8000–8999Assigned FASTTRACK COMMUNICATIONS, INC. - CO 330B CRAIG CO
2011-11-07 970-541-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LOVELAND CO
2011-11-07 970-616-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GREELEY CO
2011-10-26 970-286-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FT COLLINS CO
2011-10-14 970-300-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ASPEN CO
2011-10-14 970-440-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RIFLE CO
2011-10-14 970-458-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 STERLING CO
2011-09-27 970-616-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F GREELEY CO
2011-09-13 970-779-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DURANGO CO
2011-09-09 970-429-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ASPEN CO
2011-09-09 970-535-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MEAD CO
2011-09-07 970-286-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FT COLLINS CO
2011-09-01 970-573-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GREELEY CO
2011-08-31 970-628-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GRAND JCT CO
2011-08-24 970-628-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K 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.