How can I block call out with the number is not on my contact

Hello! Welcome to the forum and thank you for your post! The ability to block specific numbers varies by phone model. You can check your settings or user manual for your device to see if your model has this option. You can also check out the Hiya app which can help filter unwanted calls. For more information click here: https://www.cricketwireless.com/support/fraud/fraud-protection/customer/overview.html