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
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 817-609 | T-MOBILE USA, INC. | 6529 | WEATHERFD | TX | |
| 817-629 | T-MOBILE USA, INC. | 6529 | WEATHERFD | TX | |
| 817-637 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-650 | T-MOBILE USA, INC. | 6529 | GRANBURY | TX | |
| 817-657 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-658 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-683 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-689 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-690 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-691 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-703 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-705 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-706 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-714 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-715 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-721 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-723 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-726 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-729 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-743 | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX | |
| 817-749 | T-MOBILE USA, INC. | 6529 | GRAPEVINE | TX | |
| 817-791 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-793 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-797 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-798 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-800 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-808 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-819 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-822 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-825 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-829 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-845 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-846 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-874 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-875 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-881 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-891 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-896 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-903 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-919 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-937 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-938 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-939 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 817-966 | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX | |
| 818-209 | T-MOBILE USA, INC. | 6529 | BRBN BRBN | CA | |
| 818-231 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-262 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-266 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-357 | T-MOBILE USA, INC. | 6529 | NORTHRIDGE | CA | |
| 818-402 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA |
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.