City of Cambridge


857 Area code: Cambridge, Middlesex - 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).

  • 8578164900 | +1 857-816-4900 Massachusetts U.S.A.
  • 8578164901 | +1 857-816-4901 Massachusetts U.S.A.
  • 8578164902 | +1 857-816-4902 Massachusetts U.S.A.
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  • 8578164999 | +1 857-816-4999 Massachusetts U.S.A.