The telephone number +8618265900516 bears all the hallmarks of a genuine Chinese phone number. However, the number is a virtual one, for sale or rent from a website called online-sms(.)org. As a virtual number we can be sure that +8618265900516 is not a normal mobile phone or landline number provided by a regulated provider. As such you should exercise caution if you receive a communication from this number?
Are the communication that you are receiving part of an elaborate scam, or are you being contacted by someone to verify an address as in China. Be careful when you receive communication from this number, it is a fake.