1800ban

1800ban is a Japanese term that refers to a phone number starting with the digits 0120, 0800, or 0570. These are typically used for toll-free or premium-rate services in Japan. Numbers starting with 0120 are commonly associated with freephone services, meaning the caller is not charged for the call. Conversely, numbers beginning with 0570 are often used for information services or customer support lines where a per-call or per-minute charge may apply, making them a type of premium-rate number. Numbers starting with 0800 are also used for freephone services, similar to 0120.

The concept of 1800ban is distinct from standard Japanese geographic or mobile phone numbers, which have different initial digit prefixes. The primary function of these numbers is to facilitate communication with businesses, organizations, or information providers without the caller incurring standard call costs, especially for 0120 and 0800 numbers. The specific digits and the associated charges help consumers identify the nature of the service before making a call. These numbering plans are regulated by the Ministry of Internal Affairs and Communications in Japan.