Key Facts
• August 6, 2025: NTT announced plans to change fixed-line phone services.
• September 2025: Detailed transition plans to be revealed.
• Current copper lines (metal lines) are aging and will be replaced.
• Transition to fiber-optic and mobile networks to be completed by 2035.
• Households and workplaces must complete necessary procedures during the shift.
• NTT aims to minimize user inconvenience with a gradual transition.
• Specific schedules and user protection measures to be disclosed in September.
Summary
NTT announced on August 6, 2025, its plan to transition fixed-line phone services from aging copper lines to fiber-optic and mobile networks. The company will release detailed plans by late September 2025. The transition, set to be completed by 2035, will require households and workplaces to undertake necessary procedures. NTT aims to ensure a smooth shift by providing ample time and minimizing user inconvenience. Specific schedules and user protection measures will be outlined in the upcoming announcement.
