167 which operator is it?

167 is the mobile phone number segment of China Unicom.

The mobile phone numbers in paragraphs 165 and 167 are independent operators specially approved by the state, and the operating licenses are issued by the Premier and the Ministry of Industry and Information Technology. The ultimate goal of private enterprises participating in telecom business operation is to adjust the telecom industry structure, expand the market share of private operators, prevent state-owned operators from monopolizing the market, maximize the utilization of resources, let users experience more favorable tariffs and better services, and let more telecom services be free.

The number of a virtual business card has its own unique number field. Generally speaking, mobile phone numbers starting with 170, 17 1, 162, 167, 165 are virtual business cards, Xiaomi mobile phone, Leyu communication, Hainan communication and Di's mobile phone number.

Sim card

SIM (Subscriber Identity Module) card is an IC card held by mobile users of GSM system, which is called subscriber identity card. GSM system uses SIM card to identify GSM users, and 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 unplugged 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 is not only a key, but also provides 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 business information provided to users, which can be used to store short messages, especially those received when users are not turned on or left.