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).

  • 3017500500 | +1 301-750-0500 Maryland U.S.A.
  • 3017500501 | +1 301-750-0501 Maryland U.S.A.
  • 3017500502 | +1 301-750-0502 Maryland U.S.A.
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  • 3017500580 | +1 301-750-0580 Maryland U.S.A.
  • 3017500581 | +1 301-750-0581 Maryland U.S.A.
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  • 3017500586 | +1 301-750-0586 Maryland U.S.A.
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