> Area code 414 is one of only a few urban area codes that is without an overlay; only seven digits are needed for local calls within the county. This makes Milwaukee one of the largest cities where seven-digit dialing is still possible. Under current projections, it will likely stay that way through at least 2034. Despite the Milwaukee area's rapid growth, 414 is nowhere near exhausting. > > The area code gained infamy in 1983, when a gang of six Milwaukee-area teenagers calling themselves The 414s broke into several high-profile computer systems across the United States and Canada. via [Area code 414 - Wikipedia](https://en.wikipedia.org/wiki/Area_code_414)