True
KT Japan has released TTMobile, a service that allows users to open a Japanese mobile phone number before leaving Korea. Signup is handled through identity verification with a passport or the PASS authentication app, removing the need to complete the process after arrival in Japan.
TTMobile enables travelers to secure a Japanese phone number in advance, with identity verification conducted via passport or PASS app authentication. This addresses a common pain point for Korean visitors to Japan, who have traditionally needed to arrange a local SIM or eSIM after landing.
The launch is announced through KT Japan's official channels and the TTMobile website (ttmobile.jp), which introduce the service and its signup process, including guidance on opening a number before departure.
Specific pricing, plan structures, and supported devices were not detailed in the available announcements. travelers considering the service should consult the official TTMobile site for the latest terms.
For Korean travelers heading to Japan, the claim that KT Japan has launched TTMobile with pre-departure passport and PASS-based number activation is True.