# KDDI au Hikari Plus hybrid service launch > Live situation record from CLSTR: https://clstr.news/situations/kddi-au-hikari-plus-hybrid-service-launch > Updated: 2026-09-06T21:30:00.000Z. Sources: 8. Developments: 2. KDDI announced the launch of ‘au Hikari Plus’, a hybrid internet service in Japan scheduled to begin on September 17, 2026. The service integrates fiber-optic lines with au 5G mobile networks to provide high-speed connectivity and enhanced reliability. A central component of the service is the ‘Aterm HY01’ hybrid home router. This device allows users to access internet and telephone services via the 5G network immediately upon receipt, bypassing the wait for traditional fiber-optic installation. Once the fiber-optic line is activated, the system automatically transitions to high-speed connectivity, which can reach up to 10Gbps. The 5G connection also serves as a backup to maintain connectivity during fiber-optic outages or natural disasters. The hardware supports the Wi-Fi 7 standard and the 6GHz band. Additionally, users can opt for a ‘Wi-Fi Pack’ for monthly fees to access enhanced telephone services and security features designed to prevent malware and fraudulent site access. The rollout includes various plans for homes and apartments, as well as wireless-only options, through initial providers BIGLOBE, So-net, and @nifty. ## Timeline ### 2026-09-06: KDDI to launch au hikari plus hybrid 5G and fiber service KDDI is launching ‘au hikari plus’ on September 17, a hybrid service combining fiber-optic and 5G networks for immediate connectivity and disaster-resilient backup using Wi-Fi 7 technology. 4 sources. https://clstr.news/cluster/kddi-to-launch-au-hikari-plus-hybrid-5g-and-fiber-service-1 ### 2026-09-04: KDDI to launch au Hikari Plus hybrid 5G and fiber service KDDI will launch ‘au Hikari Plus’ on September 17, a hybrid service using 5G for immediate internet access before fiber-optic installation is complete, eventually switching to up to 10Gbps speeds. 4 sources. https://clstr.news/cluster/kddi-to-launch-au-hikari-plus-hybrid-5g-and-fiber-service --- Cite as: KDDI au Hikari Plus hybrid service launch. CLSTR, https://clstr.news/situations/kddi-au-hikari-plus-hybrid-service-launch