CitysDirectory

City of Herndon

240 Area code: Herndon, Fairfax - 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).

  • 2403121700 | +1 240-312-1700 Maryland U.S.A.
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  • 2403121770 | +1 240-312-1770 Maryland U.S.A.
  • 2403121771 | +1 240-312-1771 Maryland U.S.A.
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  • 2403121774 | +1 240-312-1774 Maryland U.S.A.
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  • 2403121776 | +1 240-312-1776 Maryland U.S.A.
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  • 2403121780 | +1 240-312-1780 Maryland U.S.A.
  • 2403121781 | +1 240-312-1781 Maryland U.S.A.
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  • 2403121797 | +1 240-312-1797 Maryland U.S.A.
  • 2403121798 | +1 240-312-1798 Maryland U.S.A.
  • 2403121799 | +1 240-312-1799 Maryland U.S.A.

    • Complete Phone Number

    e.g. 111-222-3333

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