How long will mobile communication short messages be kept?

The time is different according to the location where the message is saved. If no message is received, it will usually be saved for 48 hours. As long as local short messages are not deleted or automatically deleted, they will generally be permanently saved.

Short messages, whether sent by others, customized by mobile phone, reminded by email or reminded by the system, are all sent to the target mobile phone through the acceptance number after a short message gateway is generated through a certain mechanism. SMS is kept in the gateway for 48 hours, and SMS MMS is kept in the gateway for 24 hours. Users can't accept SMS due to power off, no network and other reasons. After timeout, they will not be able to get the SMS content.

For the operator, the number record sent by SMS belongs to the user's personal privacy. The user can check the detailed list in the operator's online business hall by password and random verification code, but others can't. Special circumstances, such as solving a case, require the public security department to issue an official letter to inquire. According to "Telecommunication Regulations", the retention period of detailed original data of mobile phone point-to-point SMS service charges is at least five months after the billing system generates billing information. General operators keep detailed list data for users for 6 months for users to inquire.

In addition, there is a special short message, that is, the customized relationship generated by short messages. This kind of short message refers to the business directly handled by the user through short message, rather than the reminder short message received by the user after handling the business through other means. According to telecom regulations, operators need to save such customized short messages for users, and the retention period is the duration of the subscription relationship+five months after the user's business expires or cancels.

The above are the services that operators should provide. For others, if the short message has been received at the local terminal, the retention time has nothing to do with the operator, but only with the owner's own mobile phone usage.