Internet Initiative Japan

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Internet Initiative Japan Inc. (IIJ, Japanese 株式会社 イ ン タ ー ネ ッ ト イ ニ シ ア テ ィ ブ , Kabushiki kaisha Intānetto Inishiatibu ) is a Japanese Internet service provider . In 1993, the company offered the first commercial Internet access in Japan, making it the first Japanese ISP. IIJ's shares are traded on the US NASDAQ , with the ticker symbol IIJI.

IIJ mainly offers its services to business customers, but the IIJ4U and IIJmio offerings are available for private customers.


After problems with the associated company Crosswave Communications and its subsidiaries, IIJ carried out a capital increase which enabled NTT to increase its own stake in IIJ to around 30% (as of 3rd quarter 2004).

  1. NTT (26.32%)
  2. Sumitomo Corp. (5.49%)
  3. Itochu Corp. (5.44%)
  4. NTT Communications (5.32%)


The company was founded on December 3, 1992 as KK Internet Initiative Kikaku ( 株式会社 イ ン タ ー ネ ッ ト イ ニ シ ア テ ィ ブ 企 画 , Kabushiki kaisha Intānetto Inishiatibu Kikaku , dt. "Internet Initiative Plan"). In May 1993 the name was changed to KK Internet Initiative, or English. Internet Initiative Japan. The UUCP was launched in July and the Internet connection service in November. In February 1994, Internet Initiative Japan was registered as a Type II provider under the Telecommunications Companies Act 1984 ( 電 気 通信 事業 法 , denki tsūshin jigyōhō ). On February 1, 1998, the Internet Initiative Japan merged with several companies in the AAJ group. On August 4, 1999, the company went public on the NASDAQ.

The stock was scheduled to start trading on June 23, 2005 on Mothers, a Tokyo venture-based stock market, but IIJ was unable to meet the standards required to be listed. The company only received the necessary approval with the second application on November 9, 2005 and has been listed there since December 2.

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