NumberResearchRecent prefix assignments
5 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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 |
|---|---|---|---|---|---|
| 206-466 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-501 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-551 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-571 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-579 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-650 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-679 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-683 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-730 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-769 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-778 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-779 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-786 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-793 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-841 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-850 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-851 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-852 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-853 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-854 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-856 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-883 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-898 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-931 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 206-941 | T-MOBILE USA, INC. | 6529 | SEATTLE | WA | |
| 208-206 | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID | |
| 208-230 | T-MOBILE USA, INC. | 6529 | PAYETTE | ID | |
| 208-280 | T-MOBILE USA, INC. | 6529 | TWIN FALLS | ID | |
| 208-283 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-284 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-290 | T-MOBILE USA, INC. | 6529 | SANDPOINT | ID | |
| 208-291 | T-MOBILE USA, INC. | 6529 | PAYETTE | ID | |
| 208-305 | T-MOBILE USA, INC. | 6529 | LEWISTON | ID | |
| 208-371 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-380 | T-MOBILE USA, INC. | 6529 | POCATELLO | ID | |
| 208-409 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-410 | T-MOBILE USA, INC. | 6529 | TWIN FALLS | ID | |
| 208-412 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-440 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-447 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-471 | T-MOBILE USA, INC. | 6529 | KETCHUM | ID | |
| 208-503 | T-MOBILE USA, INC. | 6529 | LEWISTON | ID | |
| 208-571 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-602 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-620 | T-MOBILE USA, INC. | 6529 | COERDALENE | ID | |
| 208-640 | T-MOBILE USA, INC. | 6529 | COERDALENE | ID | |
| 208-695 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-724 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-906 | T-MOBILE USA, INC. | 6529 | BOISE | ID | |
| 208-941 | T-MOBILE USA, INC. | 6529 | BOISE | ID |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.