To change the contract such as "remote support service" of NTT EAST / WEST, please contact each desk of NTT EAST / NTT WEST and make the procedure.
- NTT EAST 116 (toll-free) (working hours 9:00 am to 5:00 pm closed during the year-end and New Year holidays (12/29-1/3)) 0120-116116 (toll-free) (working hours 9:00 am to 5:00 pm closed during the year-end and New Year holidays (12/29-1/3))
- NTT WEST 116 (toll-free) (working hours 9:00 am to 5:00 pm closed during the year-end and New Year holidays (12/29-1/3)) 0120-116116 (toll-free) (working hours 9:00 am to 5:00 pm closed during the year-end and New Year holidays (12/29-1/3))