This list usually syncs with your phone's master block list, but it's a good secondary place to check if a number is still getting through. How to Unblock a Number
If you’ve ever blocked a spam caller, an ex, or a persistent telemarketer, you might later need to find that list—either to unblock someone or to add a new number to the list. Unlike iOS, where settings are relatively uniform, Android’s fragmentation (Samsung, Google Pixel, OnePlus, Motorola, etc.) means the location of your blocked numbers can vary. where are blocked numbers on android