Foreign SIMs and Great Firewall
#16
FlyerTalk Evangelist


Join Date: Mar 2010
Programs: DL, OZ, AC, AS, AA, BA, Hilton, Hyatt, Marriott, IHG
Posts: 21,005
Very interesting information here. I am thinking about going to Mainland China either in December 2018 or January 2019. The plan is to fly into HKG from either KUL/SIN. I haven't made up my mind yet. My plan is to go in a loop from HK to SZ, GZ, ZH, Macau, before taking the ferry back to HK. This will probably be a 2 week trip. Which sim card should I get in HK that will allow me to roam in Mainland China and Macau? I know the CSL Discovery simcard, which I got on my last trip to HK, will allow me to roam in Macau and it gives me 5GB of data for 8 days. Not a bad deal. I don't think that card will allow me to roam in the Mainland.
#18
Join Date: Nov 2006
Programs: MPC,CA,MU,AF
Posts: 8,171
I don't think there is a problem if you are roaming, but if that includes a local number in Mainland China, you need to register with Mainland China before that particular local number can be used. It shouldn't affect data. I have a one-card-two numbers which was working fine until I returned to the Mainland in December 2017 (two months ago). My +86-... number was not working and I had a problem receiving calls for that number. My HK number was working fine. When I returned to HK, I asked China Mobile to register the number for me, and the +86 number has since been working again.


