What is the mailing address for hanover insurance group? Corporate mailing address The Hanover Insurance Group, Inc. 440 Lincoln Street Worcester, MA 01653-0002 How do i contact the hanover lines agency? For Hanover agents Personal Lines agency helpline 800-922-8427 Commercial Lines agency helplineWhere is innovation insurance group located in new jersey? This field is for validation purposes and should be left unchanged. Innovation Insurance Group, llc Offices at Short Hills 51 John F. kennedy Parkway, First Floor West Short Hills, NJ 07078 917-620-2174 (Ty's cell)) 973-261-5624 (office)Is there a hanover counterfeit check notice? Counterfeit check notice - It has come to our attention that a third party, (or parties), is issuing counterfeit Hanover checks to inpiduals as part of a scam.