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).

  • 4432121100 | +1 443-212-1100 Maryland U.S.A.
  • 4432121101 | +1 443-212-1101 Maryland U.S.A.
  • 4432121102 | +1 443-212-1102 Maryland U.S.A.
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  • 4432121111 | +1 443-212-1111 Maryland U.S.A.
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  • 4432121177 | +1 443-212-1177 Maryland U.S.A.
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  • 4432121199 | +1 443-212-1199 Maryland U.S.A.