Deleting Mr. Number

I have deleted Mr. Number, reinstalled, turned off the call blocking in Settings, and restarted my phone, and even though there is no Mr. Number in my apps or in my storage, it is still somehow trying to block my outgoing calls that start with certain numbers…right now it’s numbers that start with 8 and 6. When I hit the 8 or 6 to start dialing a number in the keypad, the tone for these numbers last several seconds, and I cannot hit any other numbers until it stops. Once it stops, it shows “Flagged as spam by Mr. Number”…can anyone tell me how to stop this? Apparently, there is still something hidden in my phone related to Mr. Number.