Ringtones from international carriers

[XenonMazi]

To be more specific, default ringtones from international carriers. A long time ago, I downloaded a rar full of ringtones which contains some ringtones from a carrier in China. I know it's Chinese because the words on my phone come out in Chinese letters, but I have no idea which phone model it is, or even what carrier. Right now, I'm looking for some from Mexico and Japan. Does anyone know where I can get these from? It doesn't have to be a specific phone model, I just want default ringtones from carriers in other countries. :/