NumberResearchRecent prefix assignments
5 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 970-567 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-581 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-584 | T-MOBILE USA, INC. | 6529 | GREELEY | CO | |
| 970-689 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-690 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-691 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-692 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-701 | T-MOBILE USA, INC. | 6529 | CRAIG | CO | |
| 970-710 | T-MOBILE USA, INC. | 6529 | ASPEN | CO | |
| 970-904 | T-MOBILE USA, INC. | 6529 | VAIL | CO | |
| 970-914 | T-MOBILE USA, INC. | 6529 | VAIL | CO | |
| 970-930 | T-MOBILE USA, INC. | 6529 | GLENWD SPG | CO | |
| 970-977 | T-MOBILE USA, INC. | 6529 | VAIL | CO | |
| 970-978 | T-MOBILE USA, INC. | 6529 | GREELEY | CO | |
| 970-980 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-985 | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO | |
| 970-986 | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO | |
| 970-988 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO | |
| 970-989 | T-MOBILE USA, INC. | 6529 | GLENWD SPG | CO | |
| 971-207 | T-MOBILE USA, INC. | 6529 | PORTLAND | OR | |
| 971-218 | T-MOBILE USA, INC. | 6529 | SALEM | OR | |
| 971-225 | T-MOBILE USA, INC. | 6529 | ST HELENS | OR | |
| 971-363 | T-MOBILE USA, INC. | 6529 | ST HELENS | OR | |
| 971-500 | T-MOBILE USA, INC. | 6529 | PORTLAND | OR | |
| 971-506 | T-MOBILE USA, INC. | 6529 | PORTLAND | OR | |
| 971-570 | T-MOBILE USA, INC. | 6529 | PORTLAND | OR | |
| 972-302 | T-MOBILE USA, INC. | 6529 | MCKINNEY | TX | |
| 972-333 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-365 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-670 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-693 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-814 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-821 | T-MOBILE USA, INC. | 6529 | IRVING | TX | |
| 972-877 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-880 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-896 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-897 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-898 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.