This phone call is from Massachusetts Environmental Support Group, if you ever gave them money for charity then they will keep calling you until you call them back and go through the automated message to remove you name.
Kept receiving missed calls from this number, but would never get a voicemail. Finally called it after business hours and got their automated message- it is Environment Massachusetts. Removed myself from their calling list, not because I don't support their efforts, but because calling every single day and never once leaving a voicemail is just frustrating.