State
Massachusetts
Major City
Boston
Time Zone
America/New_York
Current Time
10:37 PM
857 Area Code
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Area Code info
Where is Area Code 857?
The 857 area code is located in the state of Massachusetts . 857 is one of the 357 three-digit telephone area codes in the USA. It covers roughly 141,967 unique phone numbers and 6,981,974 individuals near the cities of Boston, Belmont, Brookline in our database.
Cities in the 857 Area Code
The most populous cities in area code 857 are
Boston
649.8kCambridge
118.5kQuincy
101.7kNewton
87.4k Other cities in area code 857 include
Somerville
Malden
Brookline
Everett
Chelsea
Watertown
Needham
Milton
Belmont
Hanscom Afb
857 Area Code Time Zone
This time zone is known as the Eastern Standard Time (EST). The current time in this time zone is 10:37 PM on May 11, 2025.
In Service Date: May 2, 2001
857 Area Code Demographics
Statistics based on US Census data for the 857 area code
40.3
Median Age
$94.5k
Median Income
$534.7k
Median Home Value
7M
Total People
Nearby Area Codes
Phone Numbers
35,845
State
Massachusetts
Major City
Boston
Phone Numbers
1,214
State
Massachusetts
Major City
Lowell
Phone Numbers
760,233
State
Massachusetts
Major City
Springfield
Phone Numbers
2,005,784
State
Massachusetts
Major City
Worcester
Phone Numbers
1,687,260
State
Massachusetts
Major City
Boston
Phone Numbers
232,522
State
Massachusetts
Major City
Worcester
Phone Numbers
1,075,494
State
Massachusetts
Major City
Boston
Phone Numbers
1,198,970
State
Massachusetts
Major City
Lowell
Reverse Phone Lookup 857-XXX-XXXX
Find out who the 857 phone number is registered under. Our free reverse phone lookup allows you to search records associated with a landline or cell phone number to help quickly identify who’s calling or texting you.
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Browse Phone Number Prefixes in the 857 Area Code
Landlines
210Wireless Prefixes
52Carriers
36Countries
4ZIP Codes
67