I received a verification code message from 139 community inexplicably.

1. I think it's 139. In order to improve the membership, the community automatically chooses a phone number in an area to send a group message. Yours may be within its choice.

2. Someone registered with your mobile phone or, as the second floor said, someone entered the wrong number, but this may be small.

How to deal with it: it can be completely ignored. Of course, this means that you are not interested in this website. If you find that the website is not bad and you are interested, you can consider registering after learning about it.