transpacific network reached 400 Gbit/s. In August 2011, its network capacity was expanded to 500 Gbit/s.

In 2021, Nippon Telegraph & Tel issued green bonds worth about 300 billion yen ($2.7 billion). The bonds include three tranches with maturities of 3, 5 and 10 years. The proceeds will be used for environmentally friendly projects (renewable energy, energy-efficient broadband infrastructure, etc.).

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