City of Washington


301 Area code: Washington, District of Columbia - 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).

  • 3017784500 | +1 301-778-4500 Maryland U.S.A.
  • 3017784501 | +1 301-778-4501 Maryland U.S.A.
  • 3017784502 | +1 301-778-4502 Maryland U.S.A.
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  • 3017784581 | +1 301-778-4581 Maryland U.S.A.
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