KDDI's mobile communication revenue FY 2017-2018

In fiscal year 2018, KDDI Corporation generated revenue of about 1.77 trillion Japanese yen from mobile communication segment, slightly down from 1.79 billion Japanese yen in the previous fiscal year. 

 KDDI Corporation

   KDDI Corporation is a Japanese telecommunication operator and headquartered in Chiyoda ward in Tokyo. The company was originally established in 1953 as KDD (Kokusai Denshin Denwa Co., Ltd.) and developed into the form of today through a merger in 2000 with DDI Corporation and IDO Corporation. Part of the Fortune Global 500 and with a capital of around 142 billion Japanese yen, it is one of the largest telecommunication providers in Asia. In 2019, KDDI had an operating income of around 1.01 trillion Japanese yen. 


   KDDI offers a variety of services, including internet and mobile phone services, fixed-line communication, and IT-services such as outsourced data center management and office security.  The corporation has several subsidiaries such as KDDI America and KDDI Global and currently offers global networks in over 190 countries. With offices in over 60 cities worldwide, KDDI employed approximately 39 thousand people as of March 2018. KDDI has collaborated with multiple companies such as the Taiwanese manufacturer HTC Corp, MPT (Myanmar Post and Telecommunication), and Ericsson. 

 au by KDDI

   Using the former networks of DDI and IDO, KDDI developed their mobile phone company and cellular services brand au by KDDI in 2000. Au launched a nationwide 3G network in 2003 and LTE service in 2012 and is one of the most popular carriers in Japan. Au also provides security and entertainment services such as au Smart Pass, giving users download access to over 500 applications. In 2018, au held approximately 31 percent of the total mobile phone subscriptions in Japan.  

Revenue of the mobile communication segment of KDDI Corporation in fiscal year 2017 and 2018

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Release date

May 2019



Survey time period

FY 2017 to 2018; Japanese fiscal year starts on April 1 of the stated year and ends on March 31 of the following year

Supplementary notes

1 Japanese yen equals 0.00921 U.S. dollars or 0.00821 euros as of June 2019.
Values have been rounded.

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