Do I need to activate the mobile phone card I bought online?

Yes, and it can only be used after real-name authentication.

SIM (Subscriber Identity Module) card is an IC card held by mobile users of GSM system, which is called subscriber identity card. GSM system identifies GSM users through SIM card.

The same SIM card can be used on different mobile phones. GSM mobile phone can only be used in the network after inserting SIM card.

SIM card is the key for GSM mobile phone to connect to GSM network. Once the SIM card is removed from the mobile phone, the mobile phone will not be able to enjoy all kinds of services provided by network operators except emergency calls.

SIM card can not only be used as a key, but also provide a lot of convenience for users. Users only need to insert or embed the SIM card into any GSM terminal to realize communication.

SIM card also manages a lot of information provided to users, which can be used to store short messages, especially those received when users are away or absent.

On 20021May 12, the Ministry of Industry and Information Technology held a video conference on the prevention and control of telecommunication network fraud in Beijing.

Strengthen the risk remediation of key businesses such as telephone cards and Internet of Things cards, and accurately rectify the illegal transactions of "telephone cards and Internet of Things cards".

SIM card is the subscriber identification card of digital cellular mobile phone, and its full name is "subscriber identification module". In GSM digital mobile phone system, SIM card plays an extremely important role.

It is not only an important part of mobile phone, but also the ID card of every GSM mobile phone user. So SIM card realizes the idea of recognizing people but not phones.