NumberResearchRecent thousands-block assignments
40 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2004-10-13 | 970-325-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | OURAY | CO |
| 2004-10-13 | 970-387-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | SILVERTON | CO |
| 2004-10-13 | 970-454-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | EATON | CO |
| 2004-10-13 | 970-535-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | MEAD | CO |
| 2004-10-13 | 970-577-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | ESTES PARK | CO |
| 2004-10-13 | 970-626-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | RIDGWAY | CO |
| 2004-10-13 | 970-674-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | WINDSOR | CO |
| 2004-10-13 | 970-704-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | CARBONDALE | CO |
| 2004-10-13 | 970-737-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | GILCREST | CO |
| 2004-10-13 | 970-785-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | PLATTEVL | CO |
| 2004-10-13 | 970-884-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | BAYFIELD | CO |
| 2004-10-13 | 970-984-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | NEW CASTLE | CO |
| 2004-10-11 | 970-372-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FT COLLINS | CO |
| 2004-09-29 | 970-978-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2004-09-23 | 970-208-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2004-09-20 | 970-208-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2004-09-20 | 970-275-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MONTROSE | CO |
| 2004-09-03 | 970-313-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2004-08-26 | 970-314-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRAND JCT | CO |
| 2004-08-24 | 970-556-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2004-08-24 | 970-778-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2004-07-15 | 970-545-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | WINDSOR | CO |
| 2004-06-09 | 970-978-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2004-05-18 | 970-744-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LOVELAND | CO |
| 2004-05-17 | 970-292-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | LOVELAND | CO |
| 2004-05-17 | 970-313-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | GREELEY | CO |
| 2004-05-13 | 970-232-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | FT COLLINS | CO |
| 2004-05-04 | 970-281-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FRASER | CO |
| 2004-05-04 | 970-364-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | GRANBY | CO |
| 2004-04-29 | 970-978-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2004-04-15 | 970-300-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | ASPEN | CO |
| 2004-03-15 | 970-201-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2004-02-11 | 970-744-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LOVELAND | CO |
| 2003-12-01 | 970-201-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2003-11-25 | 970-208-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | GRAND JCT | CO |
| 2003-11-25 | 970-372-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 7378 | 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.