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).

  • 3016299800 | +1 301-629-9800 Maryland U.S.A.
  • 3016299801 | +1 301-629-9801 Maryland U.S.A.
  • 3016299802 | +1 301-629-9802 Maryland U.S.A.
  • 3016299803 | +1 301-629-9803 Maryland U.S.A.
  • 3016299804 | +1 301-629-9804 Maryland U.S.A.
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  • 3016299812 | +1 301-629-9812 Maryland U.S.A.
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  • 3016299869 | +1 301-629-9869 Maryland U.S.A.
  • 3016299870 | +1 301-629-9870 Maryland U.S.A.
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  • 3016299878 | +1 301-629-9878 Maryland U.S.A.
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  • 3016299899 | +1 301-629-9899 Maryland U.S.A.