Call History Sporadic

[GreenLantern]

I also have numerous calls from specific numbers that do not show up in call history. I have never activated nomorobo.

[Red Hazard]

I also have numerous calls from specific numbers that do not show up in call history. I have never activated nomorobo.

What I find strange is that the actual number is not related to this issue. I got a call from a telemarketer that did not show up and got another call from the same number later that day and it showed up the second time. I blocked it after that. With this behavior, I have doubts its related to NOMOROBO.