North American telephone area code 262 covers much of Southeastern Wisconsin, and was created on September 25, 1999, when it was split from area code 414. It covers most of the suburbs of Milwaukee, but not Milwaukee County itself. Wikipedia
Area codes 215, 267, and 445 are the North American telephone area codes for the City of Philadelphia as well as Bucks and Montgomery counties in the Commonwealth of Pennsylvania. The original area code is 215, which was established in 1947, while 267 and 445 are overlay codes for the same numbering plan area. Wikipedia
Area code 268 is the telephonearea code of Antigua and Barbuda. The 268 area code, or "(ANT)" was created during a split from the original 809 area code which began permissive dialing 1 April 1996 and ended 31 March 1997. Wikipedia