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 |
|---|---|---|---|---|---|
| 818-405 | T-MOBILE USA, INC. | 6529 | LACRSCENTA | CA | |
| 818-415 | T-MOBILE USA, INC. | 6529 | BRBN BRBN | CA | |
| 818-430 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-470 | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA | |
| 818-481 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-535 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-554 | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA | |
| 818-573 | T-MOBILE USA, INC. | 6529 | SNFN PACM | CA | |
| 818-612 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-613 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA | |
| 818-652 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-665 | T-MOBILE USA, INC. | 6529 | AGOURA | CA | |
| 818-670 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 818-679 | T-MOBILE USA, INC. | 6529 | BRBN BRBN | CA | |
| 818-693 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA | |
| 818-694 | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA | |
| 818-720 | T-MOBILE USA, INC. | 6529 | BRBN BRBN | CA | |
| 818-723 | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA | |
| 818-749 | T-MOBILE USA, INC. | 6529 | BRBN BRBN | CA | |
| 818-822 | T-MOBILE USA, INC. | 6529 | BRBN SNVY | CA | |
| 818-968 | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA | |
| 830-377 | T-MOBILE USA, INC. | 6529 | KERRVILLE | TX | |
| 830-534 | T-MOBILE USA, INC. | 6529 | GILLETT | TX | |
| 830-743 | T-MOBILE USA, INC. | 6529 | NEWBRANFLS | TX | |
| 830-822 | T-MOBILE USA, INC. | 6529 | NEWBRANFLS | TX | |
| 830-900 | T-MOBILE USA, INC. | 6529 | UVALDE | TX | |
| 830-929 | T-MOBILE USA, INC. | 6529 | BOERNE | TX | |
| 831-224 | T-MOBILE USA, INC. | 6529 | MONTEREY | CA | |
| 831-240 | T-MOBILE USA, INC. | 6529 | SALINAS | CA | |
| 831-512 | T-MOBILE USA, INC. | 6529 | SALINAS | CA | |
| 831-539 | T-MOBILE USA, INC. | 6529 | WATSONVL | CA | |
| 831-750 | T-MOBILE USA, INC. | 6529 | WATSONVL | CA | |
| 831-970 | T-MOBILE USA, INC. | 6529 | SALINAS | CA | |
| 847-275 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-293 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-322 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-331 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-338 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-343 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-344 | T-MOBILE USA, INC. | 6529 | LA GRANGE | IL | |
| 847-361 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-372 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-401 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-409 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-414 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-417 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-452 | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL | |
| 847-456 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-477 | T-MOBILE USA, INC. | 6529 | NORTHBROOK | IL | |
| 847-489 | T-MOBILE USA, INC. | 6529 | ELK GROVE | IL |
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.