638 Area Code Information

State: AE

Largest City in Area: APO

Where is Area Code 638? Area code (638) is in the state of AE. Below, are the major cities in the area code (638).

Major Cities in 638

  • APO, AE (109)
  • CEDAR RAPIDS, IA (92)
  • DES MOINES, IA (88)
  • DAVENPORT, IA (79)
  • DUBUQUE, IA (79)
  • IOWA CITY, IA (56)
  • MILWAUKEE, WI (56)
  • AMES, IA (53)
  • WEST DES MOINES, IA (53)
  • CHICAGO, IL (51)

Zip Codes in 638

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