This among a range of phone numbers (including 224-2059) that are used by insurance company investigators (under pretense of something like "magazine you might be eligible for", etc. If you have ANY sort of insurance claim (Workers Comp, Disability, auto accident, etc), you can be sure they are watching you and this is one of the ways they know when you are around. Whatever you do, do NOT call them back. Do NOT go to the gym if you have physical restrictions. Do your shopping at night. Don't go running around town shopping, etc. Watch your back.