How do you know that the mobile phone number has been hacked by the other party?

To know whether the mobile phone number is blacked out by the other party, you can take the following methods:

1. Call detection. Try dialing the other party's number. If it can be connected normally, it means that the other party has not blacked out your mobile phone number; If you can't get through or prompt that the number you dialed is not in the service area or does not exist, it may be that the other party has blacked out your mobile phone number.

2. Send text messages for testing. Send text messages to each other. If the other party can receive it normally, it means that the other party has not blacked out your mobile phone number. If the other party doesn't receive or reply to SMS, the function is limited, it may be that the other party blacked out your mobile phone number.

3. Check the call record detection. Check your call records through the mobile phone business hall or online business hall. If you can find the call record with the other party, it means that the other party has not blacked out your mobile phone number; If you can't find the phone record with the other party, it is possible that the other party has blacked out your mobile phone number.

4. Use third-party software to detect. You can download some third-party software to check whether the other party hacked your mobile phone number. These softwares usually need the other party's mobile phone number and password, but it should be noted that these softwares may have security risks.

5. Ask the other person directly. The simplest and most direct way is to ask the other person directly if your mobile phone number has been blacked out. Although this method is awkward, it is indeed one of the most direct and accurate methods.

6. Social media observation. If the other party replies to your message on other platforms, but does not reply to phone calls or text messages, then you may have been hacked.