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).

  • 4437106500 | +1 443-710-6500 Maryland U.S.A.
  • 4437106501 | +1 443-710-6501 Maryland U.S.A.
  • 4437106502 | +1 443-710-6502 Maryland U.S.A.
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