Japan phone number — no KYC, pay in crypto.

Japan uses the country code +81 and its telecommunications sector is overseen by the Ministry of Internal Affairs and Communications (MIC). Japanese mobile numbers begin with 070, 080, or 090 — in international format that becomes +81 70, +81 80, or +81 90 (dropping the trunk zero). Landline area codes in Japan are variable in length: Tokyo uses 03, Osaka 06, Yokohama 045, and Nagoya 052, with the subscriber number filling out to a standard total digit count. Japan has extremely high mobile penetration, dominated by NTT Docomo, SoftBank, and au (KDDI). The country is known for stringent phone registration requirements: physical SIM cards require proof of residency and passport for foreigners, making virtual numbers particularly valuable for short-term visitors and international businesses. Japanese internet and app culture is deeply embedded — Line, Rakuten, Mercari, and many financial platforms require SMS verification. Businesses entering Japan need a local +81 number to appear credible to Japanese partners, who strongly prefer domestic contact details. For foreign nationals working or studying in Japan without a local SIM, or for researchers testing Japanese apps from overseas, a virtual Japanese number fills an important gap.

• Japanese mobile numbers use prefixes 070, 080, or 090 — in international format, +81 70, +81 80, or +81 90 (trunk zero dropped).
• Tokyo landlines use the area code 03; Osaka 06; Yokohama 045; Nagoya 052.
• All Japanese domestic numbers are 10–11 digits including the area code, with the trunk zero always dropped in +81 international format.