Cities Served: Westford, Groton, Littleton, North Chelmsford, Village Of Nagog Woods, Ayer, Tyngsboro, Chelmsford, Dunstable, Lowell, Boxborough, Carlisle, Acton, Pepperell, Billerica, North Billerica, West Groton, Harvard, Devens, Shirley, Nashua, Dracut, Still River, Concord, Nutting Lake, Hollis, Maynard, Hudson, Pelham, Bedford, Tewksbury, Stow, Townsend, Pinehurst, Bolton, Hanscom Afb, Lancaster, Lunenburg, Lincoln, Sudbury, Burlington, Leominster, Lexington, South Lancaster, Brookline, West Townsend, Wilmington, Windham, Methuen, Waltham, Clinton, Lawrence, Berlin, Wayland, Andover, Marlborough, Litchfield, Greenville, Salem, Weston, Woburn, Merrimack, Reading, Framingham, North Waltham, Winchester, Fitchburg, Sterling, Ashby, Arlington, North Reading, Milford, Londonderry, Waverley, North Andover