To enhance the service quality, two system maintenances by NTT Docomo will be performed.

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1. Maintenance Time

　1st: 2025/04/17 22:00 to 2025/04/18 09:00

　2nd: 2025/04/28 22:00 to 2025/04/29 09:00

2. Applicable Products

　Below Part numbers of Nippon SIM for Japan will be impacted

　DHA-SIM-025/-095/-113/-138/-139/-149/-150

3. Reason

　Maintenance service by request of NTT-Docomo

4. Impact on Service

　New activation of SIM card service might not be possible during the maintenance period. Please activate

　your SIM out of the maintenance period.

5. Memo

　For SIM card already being using, the service will not be impacted.