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).

  • 2404503700 | +1 240-450-3700 Maryland U.S.A.
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  • 2404503770 | +1 240-450-3770 Maryland U.S.A.
  • 2404503771 | +1 240-450-3771 Maryland U.S.A.
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  • 2404503773 | +1 240-450-3773 Maryland U.S.A.
  • 2404503774 | +1 240-450-3774 Maryland U.S.A.
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  • 2404503776 | +1 240-450-3776 Maryland U.S.A.
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  • 2404503779 | +1 240-450-3779 Maryland U.S.A.
  • 2404503780 | +1 240-450-3780 Maryland U.S.A.
  • 2404503781 | +1 240-450-3781 Maryland U.S.A.
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  • 2404503797 | +1 240-450-3797 Maryland U.S.A.
  • 2404503798 | +1 240-450-3798 Maryland U.S.A.
  • 2404503799 | +1 240-450-3799 Maryland U.S.A.

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    e.g. 111-222-3333

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