Also, if you don't let them know about your lost/stolen phone, so they can disable it, you could be liable for calls/purchases made on the phone by the thief/person who finds it.
Well, You could go to the neighbors, A pay phone, From work, A relative, A friend. How did you start service when you didn't have a phone to begin with? Anyways, You can chat in and report it; http://www.sprint.com/landings/chat/
just wondering,how can i call to report a lost or stolen phone,if i dont have it,if i did,it wouldnt be lost or stolen,now would it!