City of Columbia


410 Area code: Columbia, Howard - 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).

  • 4104288900 | +1 410-428-8900 Maryland U.S.A.
  • 4104288901 | +1 410-428-8901 Maryland U.S.A.
  • 4104288902 | +1 410-428-8902 Maryland U.S.A.
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  • 4104288951 | +1 410-428-8951 Maryland U.S.A.
  • 4104288952 | +1 410-428-8952 Maryland U.S.A.
  • 4104288953 | +1 410-428-8953 Maryland U.S.A.
  • 4104288954 | +1 410-428-8954 Maryland U.S.A.
  • 4104288955 | +1 410-428-8955 Maryland U.S.A.
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  • 4104288999 | +1 410-428-8999 Maryland U.S.A.