Your SIM card holds contacts, but they may not show up on your device. Copying contacts from the SIM to your Sony Xperia X can make them visible.
To input contacts on the SIM card of Sony Xperia X, follow these steps:
Step 1: Navigate to the 'Contacts' section.

Step 2: Click on the three-dot icon in the upper right corner.

Step 3: Choose 'Import Contacts'.

Step 4: Select 'SIM Card'.

Step 5: Pick 'Local.'

Step 6: Choose 'Import All.'

Wishing you all the best.
