Only one email message has the host's telephone number so one which is cumbersome. I didn't know it was there. I just randomly found that email. So looking for that email one has to do do a search in their email app/program and do a search on AIRBNB and look on the email's SUBJECT list for "Reservation confirm for ________".
A phone conversation between the Owner and Guest creates a more trusting, speedy, friendly, human and positive relationship between the Owner and Guest. Of course other issues may come up but the bottom line relationship and AirBnB experience is strengthened.
This is the hospitality field!