Do you want to block unknown calls on your iPhone? Here is the guide that can help you avert this problem once and for all.

Your phone displays "No Caller ID" whenever the caller has chosen to hide their phone number from your screen. This differs from "Unknown Caller" or "Private Number," which typically point to ...

Truecaller is widely trusted for identifying unknown callers and blocking spam. But beyond these basics, it also lets you set a custom Caller ID—giving your outgoing calls a personalized touch.