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).

  • 4104281100 | +1 410-428-1100 Maryland U.S.A.
  • 4104281101 | +1 410-428-1101 Maryland U.S.A.
  • 4104281102 | +1 410-428-1102 Maryland U.S.A.
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  • 4104281111 | +1 410-428-1111 Maryland U.S.A.
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  • 4104281177 | +1 410-428-1177 Maryland U.S.A.
  • 4104281178 | +1 410-428-1178 Maryland U.S.A.
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  • 4104281198 | +1 410-428-1198 Maryland U.S.A.
  • 4104281199 | +1 410-428-1199 Maryland U.S.A.