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).

  • 4104281200 | +1 410-428-1200 Maryland U.S.A.
  • 4104281201 | +1 410-428-1201 Maryland U.S.A.
  • 4104281202 | +1 410-428-1202 Maryland U.S.A.
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  • 4104281211 | +1 410-428-1211 Maryland U.S.A.
  • 4104281212 | +1 410-428-1212 Maryland U.S.A.
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  • 4104281234 | +1 410-428-1234 Maryland U.S.A.
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  • 4104281298 | +1 410-428-1298 Maryland U.S.A.
  • 4104281299 | +1 410-428-1299 Maryland U.S.A.