City of Frederick


301 Area code: Frederick, Frederick - Wireless

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).

  • 3015143900 | +1 301-514-3900 Maryland U.S.A.
  • 3015143901 | +1 301-514-3901 Maryland U.S.A.
  • 3015143902 | +1 301-514-3902 Maryland U.S.A.
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  • 3015143978 | +1 301-514-3978 Maryland U.S.A.
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  • 3015143991 | +1 301-514-3991 Maryland U.S.A.
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  • 3015143998 | +1 301-514-3998 Maryland U.S.A.
  • 3015143999 | +1 301-514-3999 Maryland U.S.A.