AAA is know world wide and IMHO, JMHO any and all tow companies will take the road side service call because they KNOW they will be reimbursed same as will your own national brand car insurance tow policies.
AAA has nice maps. They also will assist with a car. But they are regionalized and your comment about 'world wide' needs some clarification as it relates to RVs. In our AAA region they will not provide any service to fifth wheels nor travel trailers. You cannot purchase that coverage. They also will not assist off pavement, nor anything greater than a one ton. These are huge limitations. Coach Net is often the preferred choice of the Escapees, an organization made up of full time Rvers and will tow/assist any RV.