Dedham, Massachusetts
Eastern Time Zone (UTC-5) · MA · —
About Area Codes in Dedham, Massachusetts
Dedham, Massachusetts is served by 2 area codes: 781, 339. When multiple area codes serve the same geographic area, it typically indicates overlay codes have been added to accommodate growing demand for phone numbers. All local calls within Dedham require 10-digit dialing. The city is in the Eastern time zone (UTC-5).
Other cities in area code 781
Frequently Asked Questions
What area code is Dedham, Massachusetts?
Dedham, Massachusetts uses area codes 781 and 339.
What time zone is Dedham in?
Dedham is in the Eastern time zone (UTC-5).
Do I need to dial 10 digits when calling Dedham?
Yes, all local calls in Dedham require 10-digit dialing because the area is served by multiple overlay area codes.
When was area code 781 created?
Area code 781 was established in 1997 as a geographic split from a larger area code region to serve the growing population.
What cities share area code 781 with Dedham?
Other cities sharing area code 781 with Dedham include Braintree, Burlington, Framingham, Lexington, Melrose, among others.
Dedham, MA · Eastern Time Zone