A No Caller ID call is a regular phone call that has purposefully had identifying information stripped from it. These are also called blocked, hidden, masked, or unknown calls. ... Because the people they call won't see their caller ID or possess the ability to call them back, they think they won't get caught.

What does it mean when an unknown number keeps calling you?

An unknown number could be because the caller has dialed *67 before the number to block caller ID, or it could be because the caller has requested that their provider block their number. It's more common these days that unknown numbers are scammers or telemarketers. ... Go online and google the number.

What do I do if an unknown number keeps calling me?

Hang up and report it to the Federal Trade Commission at complaints.donotcall.gov or 1-888-382-1222. If you're getting repeated calls from the same number, you might want to ask your service provider to block the number; for calls from different numbers, ask if they offer a service to block unwanted calls.