SIM card au

Stay connected in Japan with the AU SIM Card, offering unlimited domestic voice calls and flexible mobile data plans ranging from 2GB up to 50GB, plus a Japanese phone number (070, 080, or 090). Ideal for daily communication, work, and online services.

This is a monthly voice SIM contract that works exclusively with SIM-free (unlocked) smartphones. Setup is simple and hassle-free. Most modern devices automatically recognize the APN, and if manual configuration is required, clear setup instructions are provided.

The service is intended for domestic use within Japan. Unlimited voice calls are available nationwide. International calls and international roaming are restricted. SMS is available on a pay-per-use basis and is commonly used for authentication codes, banks, and online platforms.

All chargeable usage details are clearly shown on the monthly invoice, ensuring transparency and peace of mind. To maintain stable service quality, the carrier may apply speed restrictions or adjust conditions if abnormal or excessive usage is detected.

Key Features

• Unlimited domestic voice calls in Japan
• Mobile data plans from 2GB to 50GB
• Includes a Japanese phone number (070 / 080 / 090)
• Monthly contract voice SIM
• Compatible with SIM-free (unlocked) devices only
• MNP not supported
• SMS fees:
  • ¥9 per domestic message (tax excluded)
  • ¥200 per international message (tax excluded)
• APN setup instructions provided
• Clear and transparent monthly billing

Contract Terms

• Minimum contract period: 3 months
• Cancellation before 3 months: ¥3,300 early termination fee
• After completing 3 months, you may cancel anytime
• Cancellation requests must be submitted by the 15th of the month to take effect at the end of the same month
• Cancellations are processed at the end of the month
• No daily proration in the cancellation month