City of Hammond


815 Area code: Hammond, Lake - Landline

Directory Numbers

How to dial a U.S. number internationally:

  • Start with your country's exit code (e.g., 011 for the U.S. or Canada).
  • Dial the U.S. country code (+1).
  • Dial the 10-digit phone number (area code + local number).

  • 8155336000 | +1 815-533-6000 Illinois U.S.A.
  • 8155336001 | +1 815-533-6001 Illinois U.S.A.
  • 8155336002 | +1 815-533-6002 Illinois U.S.A.
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  • 8155336071 | +1 815-533-6071 Illinois U.S.A.
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  • 8155336098 | +1 815-533-6098 Illinois U.S.A.
  • 8155336099 | +1 815-533-6099 Illinois U.S.A.