Life in Japan starts with the little things: bills, subscriptions, and registration for services. And here, the phone number plays a key role. But the structure of Japanese numbers is different from what we’re used to. I was confused for a long time until I came across the Japan phone number guide from Mobal. It explains everything clearly: which area codes are used in different regions, how to call a mobile phone, and how to enter the number correctly in online forms. It’s very convenient for foreigners just beginning to navigate the Japanese system.