How to block all texts from bit.ly?
To block this type of call:


Create a new contact called something like Non-Caller, No-Caller or Bit.ly
Enter 000-000-0000 for the phone number.
Scroll down and select Block this Caller


This should stop calls from calls that come from "zero" numbers.

I just remembered this tips to block No Caller calls -> https://discussions.apple.com/thread/6040239?tstart=0