Two Sim Cards?

[nailbrains8]

Is it possible to register two sim cards and have two numbers in Thailand with one passport? 

[Bruce Aussie Chiang Mai]

One number for the wife and another for the girlfriend.

Good idea.

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[Senior Player]

So long as the both SIMs are registered, it doesn't matter if you have 2 or more. There's no stipulation on how many times you can register a different SIM using the same passport, so long as its registered and a photograph is taken of your passport, and then uploaded to the NBTC servers from inside the shop using their smartphone app. The question is: why would you want to have more than one SIM? Are they for different phones or for other reasons?

[RichCor]

37 minutes ago, Senior Player said:

The question is: why would you want to have more than one SIM? Are they for different phones or for other reasons?

Some people have two SIMs (usually one on a different carrier) when they have signal location issues, or are trying to avoid having their 'clients' pay an out-of-provider surcharge for calling them.

[torturedsole]

3 hours ago, RichCor said:

Some people have two SIMs (usually one on a different carrier) when they have signal location issues, or are trying to avoid having their 'clients' pay an out-of-provider surcharge for calling them.

A nice out-of-the-way Snapchat account could come in handy, I suppose.  

[RichCor]

Many of the Thais I know just subscribe to wireless Internet and use the free voice calling provided by their social media app (LINE, FaceBook, FaceTime, etc) as their alternate number.

[Senior Player]

22 hours ago, RichCor said:

Some people have two SIMs (usually one on a different carrier) when they have signal location issues, or are trying to avoid having their 'clients' pay an out-of-provider surcharge for calling them.

Yes, that could be a reason, but I was wondering why our OP needed two. To be honest, I don't know why I even bothered replying, especially as this sort of question could easily be answered in a second just by popping into a phone shop or a 7-Eleven.