Consumers probably have no way of find this out.  But with the volume of traffic eroding  bandwidths they offer to the public, it is not uncommon for Internet Service Providers to control torrent traffic to and from their subscribers in an attempt to maintain the bandwidth allotted in shared burstible service plans that are quite common for household users.

Tech savvy torrent users have a way to cover up torrent traffic of ISP’s so they won’t get their hands on them.  BitTorent and utorrent client programs have a configurable user setting that allows you to encrypt outgoing and incoming torrent traffic so ISPs won’t be able to distinguish one from other internet traffic.  Torrent how-to FAQ sites abound online discussing how to increase torrent traffic and this is one way to do it. Check your torrent software if it has one.