Using traceroute
from your server to various destinations you could see where (how close) the routes separate. If the multiple connections are used for load balancing single servers, you might be able to verify if this is true.
However, it's not that simple to verify if it's not true. It may well be that a single route is configured as a primary for your server, and secondary routes are only visible to you during a failure on the primary route. In this case you could just trust them until proven otherwise: losing reputation from this kind of claims could destroy their business.