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).

  • 8578167900 | +1 857-816-7900 Massachusetts U.S.A.
  • 8578167901 | +1 857-816-7901 Massachusetts U.S.A.
  • 8578167902 | +1 857-816-7902 Massachusetts U.S.A.
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  • 8578167996 | +1 857-816-7996 Massachusetts U.S.A.
  • 8578167997 | +1 857-816-7997 Massachusetts U.S.A.
  • 8578167998 | +1 857-816-7998 Massachusetts U.S.A.
  • 8578167999 | +1 857-816-7999 Massachusetts U.S.A.