I am a new guy here, but I would request 404. Simples means "page not found" in web surfing, to me means "me not found" I guess it works, since very few can put a finger on where I will be day to day..
Kilo Bravo 3 Lima Juliet Echo
Or just "Ouki" which also has no meaning at all.. Not even to me. ..You gotta love it..