The other comment has correct info about the need for an EIN.
But your Airbnb income should not go on a Schedule C in most cases. Short-term rentals still go on Schedule E. Airbnb properties generally should not go on Schedule C.
There are only two situations when rental income can go on Schedule C. One is "substantial services" (such as providing meals or daily cleanings during guest stays, which is very rare). The other rare exception is for a real estate dealer (such as someone flipping houses) with incidental rent income during a flip.
