Area Code 513 History:
Area code 513 was put into service. In 1996 area code 513 was split to form area code 937.
Counties in Ohio within area code 513 include:
Brown County, Butler County, Clermont County, Hamilton County, and Warren County.
Major cities or places in Ohio within area code 513 include:
Area code 513 serves southwestern Ohio including the larger cities and communities of Cincinnati, Fairfield, Hamilton, Mason, Middletown, Norwood, Oxford in addition to many smaller communities.