Hello, 0912 is the area code of Yulin, Shaanxi. Of course, the call to you is not necessarily from Shaanxi. It may be a special service number of a telecom operator, an Internet phone number, a fax number, or even a device that can be set to display its own number. I have also received a large number of calls from unknown numbers recently, either from credit card companies or from gaming companies. Please answer with caution.

I hope my answer is helpful to you, and thank you for your question