page_title: Area codes 781 and 339
hierarchical_section_title: Area codes 781 and 339
caption_attribution_description: English: I created this file myself using an image from the massachusetts government website. It is completely in the public domain.
context_page_description: Area code 781 covers most of Boston‘s inner suburbs and some outer suburbs. It was created as a split from area code 617 on September 1, 1997. Use of 781 became mandatory February 1, 1998. Area code 339 has been sharing the service area since May 2, 2001. Since then, 10 digit local dialing is mandatory.
  Some mobile phone numbers from the 1990s assigned to rate centers in 781 and 339 kept the 617 area code just on those mobile lines after it was split.
context_section_description: Area code 781 covers most of Boston‘s inner suburbs (the Route 128 corridor) and some outer suburbs (especially in the South Shore region). It was created as a split from area code 617 on September 1, 1997 (LATA code 128). Use of 781 became mandatory February 1, 1998. Area code 339 has been sharing the service area since May 2, 2001. Since then, 10 digit local dialing is mandatory.
  Some mobile phone numbers from the 1990s assigned to rate centers in 781 and 339 kept the 617 area code just on those mobile lines after it was split.
caption: Map showing the region covered by area codes 781 and 339
exif: {}