Talk:Thailand/@comment-138.130.163.215-20170902053129/@comment-24682153-20170902082957

No. I depends what you call "sign up".In Thailand prepaid SIM cards are registered on your name and passport. You have to show your ID when you purchase the SIM.

But you don't have to sign up any binding contract or so. They are strictly prepaid and can be discontiuned anytime. You simply top-up some value, choose a plan or package and can stop anytime. You only need to load so much money on your SIM account that the next package is covered, if you like to continue. That's all.

If you need to rely on a good connection at a particular place, check before purchase whether there is WiFi around too and which of the major three providers give the best performance there.