Explore & discover

Helpful Links

Question about SIM cards


Question about SIM cards

I currently have the Galaxy S2 and it uses a "normal/big" SIM card.


I am considering upgrarding soon to the Galaxy S4 that uses the "micro SIM" card.


I travel a lot and I dont risk traveling without a "back up phone", so in case something happens or I run out of battery, I switch SIM cards and I am back online.


So my question is.


Can I keep my old (S2) SIM card and have a new micro SIM card in the S4?

I understand that if the answer is yes I wont be using both at the same time.


Is there an expiration date on SIM cards? I read somewhere that if a SIM card is not used for a certain amount of time, it expires.


If the answer is "No", is there a work around to be able to put a micro SIM card to an old phone?


Thank you all in advance

Message 1 of 3
Accepted by topic author
Accepted by sakisus
‎09-30-2015 1:39 AM

Re: Question about SIM cards

You cannot have two SIM cards tied to the same number. If you switch to a microSIM, you can get an adapter that will allow you to use the microSIM in your old phone.

Tags (1)
Message 2 of 3

Re: Question about SIM cards

Thanks Max, that s what I thought too.


Message 3 of 3
Share this topic
Share this topic
NEW - Take a look at our best value & price ever for unlimited wireless - AT&T Unlimited Starter and AT&T Unlimited Extra plans!

Additional Support