There aren't unlimited sim cards per se. Once you reach your data limit, your internet speed will throttle down to 64kbps. The way it works is you buy a prepaid sim card starter pack. For example, a Celcom XPAX prepaid starter pack costs RM10. This will be valid for 7 days, comes with preloaded credit of RM6 and 10Gbs of basic internet at 64kbps.
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3. Re: Where I can buy sim card in KUL Airport. You can buy sim cards at the Gateway@KLIA2 mall right outside of the Arrival Hall. The mobile operators are Maxis, Celcom, Digi and U Mobile. 4. Re: Where I can buy sim card in KUL Airport. Answer 1 of 6: Hi guys, I would like to buy a sim card to use while in perhentian islands and kuala lumpur. From what I can see their rates when calling abroad are really cheap compared to my provider (vodafone) that charges 5 euro per minute!!!!! DoesWhen we visited KL 3 years ago on our way to and from Perth we purchased SIM Cards at the airport each time for 4 days duration. We are returning to Perth in a few days time for 7 weeks with stop overs in KL each way. Can we purchase a SIM card on our arrival that is valid for 2 months or are these deals limited to short time periods. Many Thanks.