Call them and ask! They may punt you to one of their customers if you just want a U or 2.
If you plan on your own AS and IP space - full network independence - ask which carriers are there, and plan on a quarter or half rack for a router. You'd also need to become a member of your regional Internet registry (e.g. ARIN in the US) and ask them for resources - e.g. IP space and an AS number.
If you plan on your own AS and IP space - full network independence - ask which carriers are there, and plan on a quarter or half rack for a router. You'd also need to become a member of your regional Internet registry (e.g. ARIN in the US) and ask them for resources - e.g. IP space and an AS number.