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Boston, MA Area Codes

Boston, Massachusetts (population 672,973) uses area codes 617 and 857.

Area code617
Area code857
Time zoneEastern
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Boston and nearby cities in area code 617

Carriers with Boston numbers

429 prefixes are assigned to the Boston exchange: 34% mobile, 11% VoIP and cable, 55% landline.

CarrierPrefixes
Verizon139
Verizon Wireless75
T-Mobile36
AT&T Mobility31
Metropcs31
Tc Systems23
Paetec Itel17
Verizon Business (MCImetro)15

Area codes used in Boston

Area codePrefixes serving BostonMain carriers in this code
617276Verizon, Verizon Business (MCImetro), AT&T Mobility
857153Verizon Wireless, T-Mobile, Onvoy (Sinch)

Boston phone number prefixes

Numbers starting with these first six digits were originally assigned to the Boston exchange.

Nearby cities in area code 617

Questions

What is the area code for Boston, MA?
Boston uses 2 area codes: 617 and 857. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Boston in?
Boston is in the Eastern time zone.