414-278 Prefix — Milwaukzn1, Wisconsin

Phone numbers starting with 414-278 are based in Milwaukzn1, Wisconsin, primarily served by Ameritech Wisconsin.

Recently looked-up numbers in 414-278

• 414-278-6432

More about this region

Area code 414 directory · About area code 414 · Get a WI phone number

Last updated: June 25, 2026