How can I block specific phone numbers (i.e. unknown numbers, international phone numbers...)? Gogolook Service September 10, 2020 07:09 If you want to block specific phone numbers, please take the following steps: Tap “Block” on the upper left side tab. Choose the block rule you want to block. Related articles I activated the "Caller Identification" function, but why are there still some numbers unknown? Why is my number of the information displayed in Whoscall? Why can't I receive calls from numbers that I have already unblocked? Why can't my redeem code be redeemed? Comments 0 comments Article is closed for comments.