Suggest an Edit Name* Categories* Insurance Lawyer Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:00 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 03:00 pm Company description Allstate Insurance Company located in the city of Upper Marlboro, state Maryland. The legal address of the Insurance 9450 Penn Ave #16, Upper Marlboro, MD 20772. Directions to the Insurance Allstate Insurance Company can be found on our interactive map. Ask your questions by calling (301) 599-2000 on workdays. Your comments (not for publishing) * — Required information Allstate Insurance Company - Upper Marlboro ← View details 9450 Penn Ave #16, Upper Marlboro, MD 20772, Upper Marlboro, Maryland 20772 (301) 599-2000