Two days have passed since the occurrence of a large-scale communication failure such as an au mobile phone that occurred at KDDI, a major mobile phone company, but it is still difficult to make calls.

The company is in the process of verifying the network and wants to fully recover it as soon as possible.

According to KDDI, a large-scale communication failure occurred after 1:30 am on the 2nd, making it difficult to connect au and UQ mobile using the same line to povo calls and data communications nationwide.

The services of businesses using au lines are also affected, affecting a wide range of lifestyles such as logistics.

Regarding restoration work at the company,

▽ Shizuoka prefecture, Nagano prefecture, Toyama prefecture to the west of western Japan area will be completed around 11:00 am on the 3rd,

▽ eastern Japan area will be completed around 5:30 pm on the 3rd,

focusing on data communication It is said that it is gradually recovering.

However, since the network is being verified even after the restoration work is completed, it has been two days since the communication failure occurred, but it has not yet been fully restored.

On the other hand, the company says that this communication failure may have affected up to 39.15 million users.

The Ministry of Internal Affairs and Communications has indicated that it falls under the "serious accident" under the Telecommunications Business Law and will take necessary measures after receiving a formal report from the company.

This communication failure has spread not only to mobile phone calls but also to a wide range of fields such as AMeDAS that observes temperature and the operation of freight trains. Thoroughness is required.