You can check the supported countries and network operators for your IoT SIM on the Supported Carriers page. Coverage details depend on whether your SIM uses Global or Japan coverage.
Global Coverage
Soracom IoT SIMs with Global coverage provide connectivity in countries worldwide. Data rates will vary based on your specific subscription plan and the country where your device connects. For detailed cost information, please review the Pricing & Fee Schedule.
Japan Coverage
Soracom IoT SIMs with Japan coverage are designed exclusively for use within Japan. For more information regarding specific regional plans, such as plan-D or plan-K, please refer to the IoT SIM Types documentation.