How long can I check the telephone records and telecommunications of the business hall?

Hello, you can check the phone records in the last six months. Telecom users can inquire through the telecom online business hall. The method is as follows:

1. Log in to the online business hall of China Telecom.

2. Click on the list to query

3. Select the short message list and start and end dates to query, and enter the short message verification code to query.