Prefix 414-381 — Milwaukee Zone 4, WI
- Area code
- 414
- Prefix (NXX)
- 381
- Rate center
- Milwaukee Zone 4
- State
- Wisconsin
- Time zone
- Central
- Code holder
- T-MOBILE USA, INC.
- OCN
- 6529
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2022-08-29
- LATA
- 356
A phone number starting 414-381 was issued in the Milwaukee Zone 4 rate center of WI — part of area code 414.
NANPA's central-office code records list T-MOBILE USA, INC. (OCN 6529) as the code holder, assigned August 29, 2022. Because 414-381 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
A scammer can display 414-381 without ever touching WI. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
Milwaukee Zone 4 is part of the Milwaukee-Waukesha, WI Metropolitan Statistical Area. For routing purposes it sits in LATA 356. Numbers here keep Central time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 414-378 | Milwaukee Zone 1 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 414-379 | Milwaukee Zone 1 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 414-380 | Milwaukee Zone 1 | UNITED STATES CELLULAR - WI |
| 414-382 | Milwaukee Zone 1 | WISCONSIN BELL INC |
| 414-383 | Milwaukee Zone 1 | WISCONSIN BELL INC |
| 414-384 | Milwaukee Zone 1 | WISCONSIN BELL INC |
FAQ
Where is 414-381 located?
The prefix is assigned to the Milwaukee Zone 4 rate center in WI, area code 414. It is part of the Milwaukee-Waukesha, WI Metropolitan Statistical Area.
Which company owns 414-381 numbers?
T-MOBILE USA, INC. holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 414-381 safe to answer?
The prefix itself says nothing about the caller. Legitimate Milwaukee Zone 4 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.