Oriental Morning Post, 4/13/12
Responding to internet user comments on the massive internet outage of April 12, China Telecom (NYSE: CHA; 0728.HK) and China Unicom (NYSE: CHU; 0762.HK; 600050.SH) employees denied today that the problem had been with China's backbone communications network.
A network outage beginning around 10:40 AM on April 12 left large numbers of Chinese internet users unable to access overseas websites. Overseas internet users reported that they were unable to access Chinese websites during the same period. The outage ended around 12:20 PM, restoring normal access to overseas websites. Speculation at the time held that a problem with China Telecom's backbone communications network had led to overseas sites, including those located in Hong Kong, Japan, the United States, South Korea, Australia, Singapore, and Holland, being inaccessible.
A Shanghai Telecom employee revealed yesterday that there had been no problems with the operator's network during this period. The employee said that Shanghai Telecom was not clear as to the cause of the outage, and had submitted a full report to the Ministry of Industry and Information Technology (MIIT).
China's backbone communications network was developed and is operated by China Telecom and China Unicom. All requests made by Chinese internet users to overseas websites are carried over underwater fiber-optic cables owned by the two operators.
Editor's Note: For more background on this topic, please see "Rumor: China Telecom Backbone Experiences Problems" MD 4/12/12 issue.