NTT Docomo Network Failure Hits Calls, Data, and SMS Nationwide
NTT Docomo is reporting a failure as of 13:00 on November 5 that makes voice calls, data communications, and SMS difficult to use on its mobile service across Japan.
1 source 3h ago
Reporting from 1 source: ASCII.jp.
Why it matters
MVNO users on Docomo's network are caught in the same failure, so the incident reaches beyond Docomo's own subscriber base while the company has yet to establish a cause or timeline.
Key Facts
- NTT Docomo reports a failure as of 13:00 on November 5 affecting voice calls, data communications, and SMS.
- The affected area is nationwide across Japan.
- MVNO services that use NTT Docomo's network are also affected.
- NTT Docomo says the time of occurrence and details of the impact are under investigation.
- Docomo has been running emergency maintenance on the Docomo Online Shop and My Docomo since the early hours of November 5 due to suspected unauthorized access.
The outage affects direct subscribers as well as MVNO services running on Docomo's network. The company says the time of occurrence and the extent of the impact are still under investigation.
NTT Docomo had already been running emergency maintenance on the Docomo Online Shop and My Docomo since the early hours of November 5, due to suspected unauthorized access. The company says any connection between that maintenance and the service failure is unknown. The network problem affects voice calls, data communications, and SMS nationwide, and Docomo says it will provide information once the cause and scope are confirmed.
Written with AI by Yomimono from the 1 cited source below, including Japanese-language reporting where cited. See our editorial policy.
Add Yomimono as a preferred source on Google
Sources
- ASCII.jp NTTドコモで通信障害 全国で通話・SMS・データ通信利用しづらく