There has always been a Hong Kong number similar to +852 recently. Is it fraud?

It turns out that this is a Hong Kong telephone. But generally speaking, all you get are fraudulent calls. It was the swindler who called you on the Internet phone.

If you receive a caller ID call starting with "852", this is generally not a long-distance area code, because domestic long-distance calls start with 0 and international long-distance calls start with 00.

You may also need to add 0 or 00 before 852 to query "0852" for domestic calls or "00852" for international calls.

When making a domestic call in Chinese mainland, you should dial the toll number 0. For example, to make a long-distance call from Shanghai to Beijing, you should dial the long-distance crown code 0, Beijing area code 10 and telephone number. However, when calling Chinese mainland from overseas (including Hongkong and Macau), you don't need to dial the long-distance crown code 0.

For example, if you want to make an IDD call from the United States to Beijing, China, instead of using the switchboard, you should dial the American international crown code 0 1 1, China international area code 86, Beijing area code 10, and the telephone number. In Chinese mainland, if you want to make an international call (including Hong Kong, Macao and Taiwan), you need to add the international crown code "00" first, then add the international area code and the user's telephone number before you can get through.

20 17 12 1, the standard of English translation and writing in the field of public service was formally implemented, and the English name of telephone area code standard was specified as area code.