What should I do? How do I get my old bestfriend back?

Have u ever had a bestest best friend? We did everything, talked all night, made up scary stories and talked our heads off in school. Highschool drifted us apart now he sits on my Facebook. I miss him dearly, but now he in a diff city and all my efforts to talk to him have failed. I don't know what to do. He is a very awesomee friend too great to forget about.