I just received a call from an unknown number, but I didn’t answer it. Then it said that the number is not bound. Please verify it before dialing. What’s going on?

There is a high probability that this is the method of fraudsters. So no matter what the prompt is, just remember one thing: don’t answer or reply. Don't believe it either. When the dialed call is not bound, there are three situations:

1. When using voIP software to make a call, there will be a virtual mobile phone number, so the computer software will occupy a phone number dialed through voIP software. Number. In the past, the caller could not be found when calling back.

2. The caller’s firewall has been set to reject calls from strangers, and it is reported that the caller is not logged in.

3. The caller is temporarily out of the service area or the telecommunications equipment is temporarily out of order.

Four types of fraudulent calls that are not recommended to be called back:

1. Numbers starting with 00 or not starting with "+86"

Numbers starting with 00 or not starting with "+" Numbers starting with 86" are usually international long-distance calls, and this situation is likely to be used by fraudsters to impersonate foreign calls through some software. If you have not recently traveled abroad or have relatives abroad, it is best to refuse such calls.

2. Eight-digit mobile phone numbers starting with 95

8-digit mobile phone numbers starting with 95 are mostly sales or scam calls. As early as July 2018, 13 departments including the Ministry of Industry and Information Technology, the Ministry of Public Security, and the Supreme People's Procuratorate jointly issued a document, which focused particularly on the management of 8-digit mobile phone numbers starting with 95.

3. Ten-digit numbers starting with 400 and 800

10-digit mobile phone numbers starting with 400 and 800 are mobile phone numbers mainly used by companies for customer service. Many companies commonly use this type of phone number. Mobile phone numbers improve corporate image. These numbers are indeed regular numbers, but they can only be used to answer calls and cannot make outbound calls. Many criminals take advantage of this loophole, making many people think that they are regular companies committing fraud. Therefore, these numbers It’s best to just hang up the phone at the beginning.

4. Numbers without caller ID

When the phone does not have caller ID enabled, the phone number will not be displayed when making calls, but caller ID functions are not very useful. May be rejected by ordinary users. If you receive a call without caller ID and claims to be from a company, dealer, or government department, you are undoubtedly a scammer.

Reference for the above content: Baidu Encyclopedia--Telephone Scam

Reference for the above content: Baidu Encyclopedia--400 Telephone Scam