Boston, Massachusetts · EST/EDT (UTC-5) · United States
Boston metro overlay
Overlay for 617. Additional capacity for Boston core.
Area code 857 is located in Boston, Massachusetts (United States). It covers Boston metro overlay.
Area code 857 (Boston, Massachusetts) is in the EST/EDT time zone. Standard time is UTC-5 and UTC-4 during Daylight Saving Time.
Area code 857 is a legitimate NANPA-assigned code serving Boston, Massachusetts. However, scammers can spoof any area code. If you receive an unexpected call from (857), verify the caller before sharing personal information.
Area code 857 follows EST/EDT (UTC-5). See the live clock at whattime.city/boston/ for the exact current time in Boston.
Area code 857 was introduced in 2001. Overlay for 617. Additional capacity for Boston core.