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).

  • 3017504900 | +1 301-750-4900 Maryland U.S.A.
  • 3017504901 | +1 301-750-4901 Maryland U.S.A.
  • 3017504902 | +1 301-750-4902 Maryland U.S.A.
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  • 3017504948 | +1 301-750-4948 Maryland U.S.A.
  • 3017504949 | +1 301-750-4949 Maryland U.S.A.
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  • 3017504951 | +1 301-750-4951 Maryland U.S.A.
  • 3017504952 | +1 301-750-4952 Maryland U.S.A.
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  • 3017504956 | +1 301-750-4956 Maryland U.S.A.
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  • 3017504970 | +1 301-750-4970 Maryland U.S.A.
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  • 3017504978 | +1 301-750-4978 Maryland U.S.A.
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  • 3017504980 | +1 301-750-4980 Maryland U.S.A.
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  • 3017504990 | +1 301-750-4990 Maryland U.S.A.
  • 3017504991 | +1 301-750-4991 Maryland U.S.A.
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  • 3017504999 | +1 301-750-4999 Maryland U.S.A.