AU KDDI* Charge (What It Is + Is It Legit?)

When au (KDDI) processes monthly mobile billing in Japan, the charge descriptor "AU KDDI*" reflects how the company's payment system separates the consumer-facing brand name "au" from the parent corporation "KDDI Corporation" using an asterisk as a delimiter, a common formatting convention in Japanese telecom billing infrastructure. The truncated, combined format exists because international card networks impose strict character limits on merchant descriptors, forcing KDDI to compress what would otherwise read as "au by KDDI Corporation" into the shortened "AU KDDI*" that appears on your statement. If you're seeing this charge for around ¥4,000 on a monthly basis, it almost certainly corresponds to your au mobile phone plan subscription in Japan.

No, this is a legitimate charge from au (KDDI). However, if you did not authorize this charge or cancelled your subscription, you may be eligible for a refund.

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