The scale of the damage Japan’s communications infrastructure as a result of the shinsai, or earthquake disaster was unprecedented. To reach a point at which devastated areas of the country were able to communicate with each other was a major task for NTT East, involving the round-the-clock commitment of thousands of NTT workers. Hopefully some of the following facts and figures can demonstrate the scale of the task our country faced and the lengths to which NTT employees went in order to fulfil our duties to aid the national recovery:

  • Approximately 90 trunk lines severed as a result of damage to bridges and railways
  • 990 exchange buildings left without power
  • 1.5 million damaged lines
  • 16 exchange buildings completely destroyed
  • 2,700 km of aerial cables damaged
  • Over 100 power supply vehicles mobilized
  • 3,930 emergency use public phone lines set up
  • Donated 30,000 telephones to local authorities
  • 450 emergency internet access points created
  • The 171 disaster emergency dial phone number was used 3.48 million times
  • The Disaster Emergency Message board was accessed 330,000 times
  • NTT provided free calls from 122,000 public phone calls
  • NTT needed to procure 70,000 litres of fuel per day to maintain electrical supplies to exchanges to enable emergency communications

As a result of our efforts, 4.75 million public phone calls were made on the day directly after the disaster, with between 0.5 and 1.5 million calls made in the week following. For more details about how we helped with the recovery efforts after the disaster, and the work we’ve been doing since to restore Japan’s communications network, please visit the NTT East website to download a PDF explaining this in much more detail.

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