City of Columbia


301 Area code: Columbia, Howard - 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).

  • 3013074800 | +1 301-307-4800 Maryland U.S.A.
  • 3013074801 | +1 301-307-4801 Maryland U.S.A.
  • 3013074802 | +1 301-307-4802 Maryland U.S.A.
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  • 3013074810 | +1 301-307-4810 Maryland U.S.A.
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  • 3013074851 | +1 301-307-4851 Maryland U.S.A.
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  • 3013074881 | +1 301-307-4881 Maryland U.S.A.
  • 3013074882 | +1 301-307-4882 Maryland U.S.A.
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  • 3013074886 | +1 301-307-4886 Maryland U.S.A.
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