No, it is not possible to have two Facebook accounts with the same mobile number. But you can have two Facebook accounts by registering with two distinct email addresses. And if you want to access them on your smartphone, you can do it by installing 2 apps, Facebook and Facebook Lite. Krishan Kumar Patel, CEO (2017-present)

https://www.quora.com/Is-it-possible-to-verify-two-Facebook-accounts-with-the-same-telephone-number