1099-MISC for out-of-state

I'm self-employed and operate as a sole proprietor. I received several 1099-MISC forms from my clients this year, and even if a client is from out-of-state, Box 17 is always either blank or they enter my home state rather than where they are from.

 

Do I need to file this 1099-Misc income with those separate states as well (in other words, a separate state return for my home state and the state where the client is located), or just my home state where my business is based? There are times that the work is virtual and done completely from my home, but there are times when I'll cross state lines to work on location with them somewhere else. Thanks!