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).

  • 3017508800 | +1 301-750-8800 Maryland U.S.A.
  • 3017508801 | +1 301-750-8801 Maryland U.S.A.
  • 3017508802 | +1 301-750-8802 Maryland U.S.A.
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  • 3017508810 | +1 301-750-8810 Maryland U.S.A.
  • 3017508811 | +1 301-750-8811 Maryland U.S.A.
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  • 3017508855 | +1 301-750-8855 Maryland U.S.A.
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  • 3017508859 | +1 301-750-8859 Maryland U.S.A.
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  • 3017508870 | +1 301-750-8870 Maryland U.S.A.
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  • 3017508876 | +1 301-750-8876 Maryland U.S.A.
  • 3017508877 | +1 301-750-8877 Maryland U.S.A.
  • 3017508878 | +1 301-750-8878 Maryland U.S.A.
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  • 3017508880 | +1 301-750-8880 Maryland U.S.A.
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  • 3017508898 | +1 301-750-8898 Maryland U.S.A.
  • 3017508899 | +1 301-750-8899 Maryland U.S.A.