Use of this website (English only)

To use the support page for Japan Travel SIM ("this website") comfortably, we recommend the following browser settings.

Use of TLS

On this website (, all communications between our Web server and your computer are encrypted through the use of TLS protocol.
This significantly reduces the risk that information transmitted via a Web browser or by us is intercepted or tampered with by third parties, thus you can be assured that you can safely use this website.
We have confirmed that the latest browsers support TLS communication.

To check that this website is indeed the support page for Japan Travel SIM, click the site seal on the top of the page.

Use of Cookies

Some of our Web pages use cookies in order to improve usability and operability. Cookies issued by IIJ or its subcontractors are used to identify information about the Web pages you visit.
A cookie consists of additional information transmitted from a Web server to the Web browser of the customer. You can accept or reject cookies and delete received cookies by adjusting the setup of the Web browser. We do not use cookies to collect your personal information.

Use of JavaScript

Our web pages use JavaScript in order to improve usability and operability.

About Web Browsers

If you are using an old Web browser, you might not be able to browse this website comfortably. Please update to the latest version.

Terms and Conditions of This Website

The terms and conditions of this website, including trademarks, copyrights, links, and disclaimers, conform to the terms and conditions of the websites of Internet Initiative Japan Inc. ("IIJ") and its group companies (English only).

Linking to this website

Send the following information to We will contact you after we verify the information provided.

  • URL of the Web page used when linking to this website
  • Contact information including company name, department name, person in charge, phone number, and e-mail address

Rules for linking to this website

Observe the following rules when linking to this website.

  • Always make the link refer to the top page of this website (
  • The website and its contents are subject to change or deletion without notice.
  • We will not permit linking to this website from websites that feature messages defaming IIJ or its service or that is home to illegal (or possibly illegal) content.
  • IIJ reserves the right to revoke linking permission or the use of link banners.