City of Frederick


301 Area code: Frederick, Frederick - 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).

  • 3017504800 | +1 301-750-4800 Maryland U.S.A.
  • 3017504801 | +1 301-750-4801 Maryland U.S.A.
  • 3017504802 | +1 301-750-4802 Maryland U.S.A.
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  • 3017504851 | +1 301-750-4851 Maryland U.S.A.
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  • 3017504878 | +1 301-750-4878 Maryland U.S.A.
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  • 3017504881 | +1 301-750-4881 Maryland U.S.A.
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  • 3017504899 | +1 301-750-4899 Maryland U.S.A.