Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Visit the hotel Carl's Steak Subs, which is in the state Massachusetts (MA), city Waltham. Our hotel can be found at 55 Prospect St, Waltham, MA 02453-8522. Great deals on best and cheap hotels. Your comments* (not for publishing) * — Required information Carls Steak Subs/55 Prospect St - Waltham - Massachusetts (MA) ← View details 55 Prospect St, Waltham, MA 02453-8522, Waltham, Massachusetts (MA) +1 781-893-9313