City of Columbia


443 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).

  • 4435734100 | +1 443-573-4100 Maryland U.S.A.
  • 4435734101 | +1 443-573-4101 Maryland U.S.A.
  • 4435734102 | +1 443-573-4102 Maryland U.S.A.
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  • 4435734159 | +1 443-573-4159 Maryland U.S.A.
  • 4435734160 | +1 443-573-4160 Maryland U.S.A.
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  • 4435734181 | +1 443-573-4181 Maryland U.S.A.
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