The meaning of "Where are you?" in Telugu is: "నీవు ఎక్కడ ఉన్నావు" (Neenu ekkada unnavu) for informal or singular "you." For formal or plural, it is: "మీరు ఎక్కడ ఉన్నారు?" (Meeru ekkada unnaru?)

This is the common way to ask someone's location in Telugu.