If someone blocks your number on their iPhone or Android phone, there are a few ways to tell, including unusual messages and how quickly your call goes to voicemail. Let’s take a look at the signs that your number has been blocked and what you can do about it.

Since it’s not necessarily easy to tell if you’ve been blocked, remember that the best way to find out is to ask the person directly. If that’s not something you can or want to do, we have some pointers to help you determine if you’ve been blocked.

Depending on whether they’ve blocked your number on their phone or with their mobile provider, the clues to a blocked number will differ. Other factors can also produce similar results, such as a cell tower that’s down, their phone being turned off or has a dead battery, or they have Do Not Disturb turned on. Dust off your detective skills and let’s examine the evidence.

There is no standard blocked number message and many people don’t want you to know for sure when they’ve blocked you. If you get an unusual message that you haven’t heard before, they’ve probably blocked your number through their mobile provider. The message varies by provider, but is usually something like this: