Prefix 414-455 — Milwaukee Zone 1, WI
- Area code
- 414
- Prefix (NXX)
- 455
- Rate center
- Milwaukee Zone 1
- State
- Wisconsin
- Time zone
- Central
- Code holder
- MCIMETRO ACCESS TRANSMISSION SERVICES LLC
- OCN
- 7229
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2003-10-28
- LATA
- 356
The 414-455 prefix belongs to area code 414 and is anchored to the Milwaukee Zone 1 rate center (WI). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Milwaukee Zone 1 is part of the Milwaukee-Waukesha, WI Metropolitan Statistical Area. For routing purposes it sits in LATA 356. Numbers here keep Central time.
The assigned code holder is MCIMETRO ACCESS TRANSMISSION SERVICES LLC, operating company number 7229, assigned October 28, 2003. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Caller ID showing 414-455 is not proof the call came from Milwaukee Zone 1: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 414-452 | Milwaukee Zone 1 | UNITED STATES CELLULAR - WI |
| 414-453 | Milwaukee Zone 1 | WISCONSIN BELL INC |
| 414-454 | Milwaukee Zone 1 | WISCONSIN BELL INC |
| 414-456 | Milwaukee Zone 1 | WISCONSIN BELL INC |
| 414-457 | Milwaukee Zone 1 | UNITED STATES CELLULAR - WI |
| 414-458 | Milwaukee Zone 3 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI |
FAQ
Where is 414-455 located?
The prefix is assigned to the Milwaukee Zone 1 rate center in WI, area code 414. It is part of the Milwaukee-Waukesha, WI Metropolitan Statistical Area.
Which company owns 414-455 numbers?
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 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 414-455 safe to answer?
The prefix itself says nothing about the caller. Legitimate Milwaukee Zone 1 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.