What's the longest you've known someone online?

I still talk with a guy I met on Xbox Live about 11 years ago, I met him on Black Ops 1 and every day I came home from school we would get on and play Modern Warfare 2, Halo 3 n' Reach, Black Ops 1-2, Castleminer Z and Minecraft we probably did every Black Ops 3 Zombies Easter Egg and I remember our clan tags on CoD and Halo being [s3zi]