Area Code 857 Massachusetts, USA

WhereCall is here to provide you with the most information on the area code 857, located in Massachusetts, USA. This area code contains 204 prefixes and is not in jeopardy of exceeding the known supply of central office codes during the planning/implementation interval for relief.

NPA Information
Area Code (NPA)857
LocationMassachusetts, USA
In Jeopardy?No
Is Assigned?Yes
Assignment Date03 May 2000
In Service?Yes
In Service Date02 May 2001
Parent NPA617
Overlay Complex617/857
Predominant Timezone(s)UTC-05:00
Reverse Phone Lookup »