Japanese mobile numbers
Mobile numbers commonly begin with 070, 080 or 090 and contain 11 digits in domestic format.
JAPANESE PHONE FORMATTER
Turn 090 into +81 correctly.
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DETECTEDMobile
Use inside Japan and on most Japanese forms.
Use when sharing the number outside Japan.
Useful for forms that reject spaces or hyphens.
JAPAN PHONE NUMBER FORMAT
How do you write a Japanese phone number internationally?
Use Japan’s country code +81 and remove the number’s first domestic zero. A Japanese mobile number such as 090-1234-5678 becomes +81 90-1234-5678.
Tokyo and Osaka landlines
Tokyo uses area code 03 and Osaka uses 06. Internationally, 03 becomes +81 3 and 06 becomes +81 6.
Forms without spaces
If a form rejects spaces and hyphens, use the compact format such as +819012345678.
Common Japanese phone number examples
TypeDomesticInternational
Mobile090-1234-5678+81 90-1234-5678
Tokyo03-1234-5678+81 3-1234-5678
Osaka06-1234-5678+81 6-1234-5678