NTT Docomo will terminate its 3G (FOMA) service on March 31, 2026. As a result, Soracom Air for Cellular will no longer support 3G communication via the NTT Docomo in Japan after this date.

Impact

If you are using FOMA lines with 3G-only devices in Japan, please consider replacing them with devices that support communication methods other than 3G (such as 4G/LTE and LTE-M) before the service termination date.

Note: Depending on your device, even LTE devices may be affected by the 3G shutdown. Please contact your vendor for details.

Note: KDDI and SoftBank have already terminated their 3G services in Japan.

Affected Subscriptions

The following subscriptions support 3G service on the NTT Docomo:

• Japan Coverage Subscriptions: plan-D
• Global Coverage Subscriptions: plan01s, planX1, planX3, planV1, planM1

Related Links

NTT Docomo Related Links

• NTT Docomo "FOMA" and "i-mode" Service Termination Notice (Japanese)

Soracom Related Links

• I am using a 3G-only device in Japan. Will the FOMA service termination affect me?

If you have any questions, please contact Soracom Support.