List of Tmobile partners in Europe

ryanlamar wrote:

Does anyone know where I can find a list of T-Mobile partners for reach country?  I ask because I will be on a cruise line that has its own tower, and I plan to do manual connections to the correct T-Mobile partner towers when I am near the ship so I can avoid the usurious prices cruise ships charge when roaming on their towers. 

Why would you want to, tmobile sucks, worst carrier doing business today.