The trend of the COVID-19 pandemic in Indonesia has decreased. Nevertheless, the government strives to suppress this pandemic through various policies. Digitally, through the Ministry of Communication and Information (Kominfo), the government has used data on the movement of Mobile Subscriber Integrated Services Digital Network Number/MSISDN mobile phones from the Base Transceiver Station (BTS) to detect crowds of residents. Through this data, Kominfo can provide warnings via short messages in SMS blasts when there is a crowd of residents.