Talk:Singapore/@comment-208.54.32.170-20131203213958

not super relevant to prepaid, but worth mentioning:

for those (USA) t-mobile customers who are on an iPhone 5S and taking advantage of the free international text and data roaming, M1 is your roaming carrier. I had data throughout issues until I disabled LTE under Settings->Cellular->Enable LTE. then data speeds were somewhat acceptable after that.