What is the *777# code and what are the offers available on it? The *777# is the USSD code which you have to enter in order to purchase your Data plans. The below table shows the current data offers on *777#; Related articles How do I know if I am eligible for a credit loan? Why should I register my SIM card? K3 for 250MB Hour Pass Promotion My Flex Card is damaged, what do I do? How does Online Top Up work?