Area Code 617 History - Massachusetts

Significant events for area code 617


Year
Details
1947 One of the two original area codes for Massachusetts, covering the eastern and central areas.
1988 Area code 617 was split with 508 covering central and southern Massachusetts.
1997 Area code 617 was split with 781 covering all but the inner Boston area.
2001 Area code 857 was overlaid on 617.