How to Stop Unknown Calls on Android?

Step 1

Open the Phone app

Step 2

Tap the three dots or More

Step 3

Go to Settings

Step 4

Tap Blocked numbers

Step 5

Turn on Block unknown/private numbers if available

Step 6

Enable Caller ID and spam protection

Step 7

Turn on Filter spam calls

Step 8

Use Do Not Disturb and allow only contacts

Step 9

Add unwanted numbers to the block list

Step 10

Use your carrier’s call-blocking service

Step 11

Install a trusted call-blocking app

Step 12

Report spam numbers as spam

Step 13

Keep Android and the Phone app updated

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