According to mobile phone companies au's KDDI, Softbank, and Rakuten Mobile, so far, there have been no effects such as communication failures due to this earthquake.
Also, NTT DoCoMo is currently confirming the impact.
No impact on 3 earthquake mobile companies NTT DoCoMo is confirming impact
2022-06-19T07:14:31.032Z
[NHK] According to au's KDDI, Softbank, and Rakuten Mobile, mobile phone companies, so far, communication problems due to this earthquake have occurred ...
Source: nhk