Hello, first of all, thank you for your support to China Telecom. Five codes of China Telecom's mobile phone: AN: the meaning of access network; AAA: authentication, authorization and statistics, a system developed by Cisco to provide network security; IMSI: The International Mobile Subscriber Identity (IMSI) is the number that uniquely identifies the mobile subscriber internationally; ESN: Each mobile phone is assigned an electronic serial number, which can be transmitted to the call center every time a call is made. Every time the mobile phone receives it, it must verify the electronic serial number of the other party.
AKEY: First, user identity information and authentication information, mainly the IMSI number and proprietary authentication information of CDMA system, including A-Key, SSD-A and SSD-B. General business halls do not provide five-code inquiry. Please consult your local business office for details.
If you need to check the bill and pay the phone bill, please go to the online business hall of Anhui Telecom. Wish you a happy life!
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