Tough weekend for KDDI with full network crash, and some 40M mobile clients affected, they are just finally coming back nationwide after +60hrs service outage. According to presser here Sunday morning, seems core router switch was cause [Eng] https://t.co/TIMELiPnLm pic.twitter.com/7xjAKonVZv

— Mobile in Tokyo (@Wireless_Watch) July 4, 2022