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).

  • 4104283300 | +1 410-428-3300 Maryland U.S.A.
  • 4104283301 | +1 410-428-3301 Maryland U.S.A.
  • 4104283302 | +1 410-428-3302 Maryland U.S.A.
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  • 4104283310 | +1 410-428-3310 Maryland U.S.A.
  • 4104283311 | +1 410-428-3311 Maryland U.S.A.
  • 4104283312 | +1 410-428-3312 Maryland U.S.A.
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  • 4104283321 | +1 410-428-3321 Maryland U.S.A.
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  • 4104283333 | +1 410-428-3333 Maryland U.S.A.
  • 4104283334 | +1 410-428-3334 Maryland U.S.A.
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  • 4104283378 | +1 410-428-3378 Maryland U.S.A.
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  • 4104283380 | +1 410-428-3380 Maryland U.S.A.
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  • 4104283399 | +1 410-428-3399 Maryland U.S.A.