Establish a local presence by purchasing a phone number in area code 857. Phone numbers in area code 857 are associated with the state of Massachusetts. There are currently at least 11 U.S. cities and 57 U.S. ZIP Codes associated with this telephone area code. In addition, there are at least 800 NXX's (the three-digit code that makes up digits 4-6 of a standard 10-digit U.S. phone number) available for use along with area code 857.
Phone numbers in area code 857 are associated with the state of Massachusetts.
The 857 area code currently has at least 11 cities in Massachusetts associated with it: Belmont, MA; South Boston, MA; Brookline, MA; Cambridge, MA; Chelsea, MA; Everett, MA; Milton, MA; Newton, MA; Quincy, MA; Somerville, MA; and Watertown, MA.
There are at least 57 U.S. ZIP codes associated with the area code 857 at this time (view all here).
The ZIP Code 02148 is the ZIP Code most frequently connected to the 857 area code. The 02148 ZIP Code is primarily associated with Middlesex County in the state of Massachusetts.
There are 3 counties associated with the 857 area code: Suffolk County; Middlesex County; Norfolk County.
An NXX, which is also known as the a "central office code" or an "exchange", is the three-digit sequence that comprises digits 4-6 of a standard 10-digit U.S. phone number. The NXX is the second main part of a phone number that comes directly after the area code, e.g. (857)-678-xxxx.
Detailed information about area code 857 phone numbers. Establish a Massachusetts presence with a 857 number.