After the mobile phone number is transferred, can I find the phone records and SMS details before the transfer?

After the mobile phone number is transferred, you can query the original call record.

If the mobile phone number is transferred, it is impossible to obtain the call record information with the service password and SMS verification code in the mobile online business hall (this is also for the purpose of protecting the privacy of the original user);

After the mobile phone number is transferred to the network, the call records of the first six months are only open to the holders of the original number. You need to bring your ID card to the business outlets to inquire and print the consumption details. The user of the current number has no right to use his ID number to query the user's call record before transferring to the network;

Due to the need of investigating a case, the investigation organ may retrieve the telephone records of the suspect for more than six months, but the inquiry service is not open to the public, and only the competent authority can inquire and copy the information at the business outlets with the notice of filing a case or relevant legal documents;

If you have exported and backed up the call records every month before, you can inquire through the backed-up call list.