System and computer program for and method of adapting communication navigation

A system (10, 20) for operating a communication navigation has a movable body navigation terminal (16) for a user and an administering apparatus (11, 21) for a communication navigation company, which are connected to each other through a communication line (12, 15, 22). The movable body navigation terminal is mounted on a movable body. The administering apparatus provides, to the movable body navigation terminal, plan information which indicates an added, changed or detailed plan in line with a drive plan set at the movable body navigation terminal and which corresponds to an in-progress state of the drive plan based on a driving condition of the movable body detected at the movable body navigation terminal. The administering apparatus collects a predetermined amount of fee in case that the movable body navigation terminal adopts the provided plan information.