I want to use Unicom card to check my SMS records within one year.

Unicom users' telephone, Internet access, SMS and other details can only be viewed in the last six months, and details beyond the time range cannot be viewed.

You can log in to the homepage of online business hall /02oec by using your mobile phone number, click "Phone bill inquiry" and "Detailed bill inquiry", and select the detailed bill to be inquired (such as phone bill, SMS and MMS bill, value-added service bill, Internet traffic bill, WLAN bill, etc.). ) Query the detailed information of the past six months (including this month).