However, customers are required to make a top-up within 60 days of activation. If the SIM card is not activated within 180 days, the SIM card in question will be moved to “Cooling Stage” where both Inbound and Outbound calls are restricted.Īfter successful activation, the SIM card will have 365 days validity. (Yangon, 9 th January 2020) – MPT today announced that MPT customers should be aware of SIM Lifecycle and SIM Validity to avoid losing their mobile phone number.Īfter purchasing the registered SIM cards, MPT customers are required to make the first call, SMS, USSD or by topping-up within 180 days.