We can block any annoying number directly from the Huawei smartphone's call history if we wish. This feature is not difficult to find and makes it even easier to block calls from alleged contests or surveys.

Note: A phone number can be unblocked the same way.

Android 10 | EMUI 10.0
Step 1:  Open the  Phone app
Step 2:  Tap and hold a  phone number  or entry
Step 3:  Tap on  Block contact
  1. Open the Phone app
  2. Tap and hold a phone number or entry
  3. Tap on Block contact

Huawei Instructions
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