I wouldn't worry about it at this time.
[QUOTE=Breadman;2030514]Any concerns booking or taking flights that fly over Korea or that land in Seoul?[/QUOTE]I know some airlines are changing their routings on overflights of the Korean peninsula at this time, but as far as I know, no one has expressed any real concern about operating into and out of ICN. It's biz as usual.
Thanks for the update! I sort of thought that might be the case!
[QUOTE=Syzygies;2030606]Perhaps you refer to the DTAC Happy SIM?
Just go to the counter of the phone provider at the airport when you arrive, and ask them to check your SIM. They will tell you if is cancelled, and will sell you another based on speed and how much data you want. SIMs have to be registered in the modern day. If not registered will have been cancelled. I don't know the period of non use that will cause cancellation.
It's very unlikely your old tourist SIM is still going to work. No big deal.[/QUOTE]I appreciate the help.