What is 617 area code?

• The 617 area code is located in the eastern part of Massachusetts, including the city of Boston and its surrounding areas.
• It was one of the original area codes created in 1947 and was the original area code for the entire eastern half of the state before being split multiple times to create new area codes.
• The 617 area code is currently shared with the 857 overlay area code, which was introduced in 2001 to provide additional phone number options for the region.
• The 617 area code is known for being highly populated and densely urban, with many historical sites, cultural attractions, and universities located within its boundaries.
• In addition to Boston, some of the other major cities and towns in the 617 area code include Cambridge, Quincy, Somerville, and Brookline.
• The 617 area code covers a total of 55 cities and towns in Massachusetts.