Japan’s NTT Docomo has fixed network problems that started Monday morning and plagued some 1.7 million of its 58 million strong subscriber base.
An NTT Docomo spokesperson told the Wall Street Journal that network issues had been fully restored at 9.36pm Monday Japan time, around 13 hours after problems began.
Japan’s larger mobile carrier by subscriber number said problems at a phone number processing facility had led to subscribers having difficulties making connections. The situation led users to making repeated call and text attempts, further increasing the load on base stations and exacerbating the problem.
The spokesperson said the company was still trying to deduce the cause of the problem.
NTT Docomo, like its Japanese counterparts KDDI and Softbank, experienced network disruptions in the direct aftermath of the devastating March 11 earthquake that hit the country earlier this year.
a faulty network card
http://www.telecomasia.net/content/m1-hit-service-outage
The Philippines’ Globe Telecom had last month also experienced disrupted services in two regions due to a subsea cable cut believed to be caused by tropical storms.