Top of Page

Links to move inside this page.

  1. HOME
  2. About IIJ
  3. News / CSR
  4. Press Releases
  5. 2023
  6. IIJ Offers a 6GB Version of Japan Travel SIM, a Prepaid SIM for Visitors to Japan

IIJ Offers a 6GB Version of Japan Travel SIM, a Prepaid SIM for Visitors to Japan

With double the data capacity of the previous version, can be used in Japan throughout the NTT DOCOMO 4G (LTE) and 3G service areas

July 25, 2023
Internet Initiative Japan Inc.

PDF [276KB] / Japanese

TOKYO - July 25, 2023 - Internet Initiative Japan Inc. (TSE Prime: 3774), one of Japan's leading Internet access and comprehensive network solutions providers, today announced the availability of a new 6GB (30 days) version of its Japan Travel SIM, a prepaid SIM card providing mobile data communication service to people staying in Japan temporarily. Offering twice the capacity of earlier products, the new version goes on sale today at approximately 570 outlets throughout Japan, including electronics stores and airport shops.

Japan Travel SIM is sold as a package containing a multi-size three-in-one SIM card (for standard, micro, and nano sizes) with preset data communication capacity. Simply by inserting the SIM card in a SIM lock-free mobile device or Wi-Fi router and performing the necessary setup in the device, customers are able to enjoy mobile data communication in Japan throughout the nationwide NTT DOCOMO 4G (LTE) and 3G service areas. Timed with the recent increase in visitors to Japan from abroad, the new 6GB (30 days) version is offered in addition to the existing 3GB (30 days) version, for those with greater data communication needs while in Japan.

Service Description

Product name Japan Travel SIM 6GB (3in1) Japan Travel SIM 3GB (3in1)
Data capacity 6GB 3GB
Pricing Open pricing
Usage period(*1) 30 days from the start of use for data communication
Data add-on(*1) Available
SIM card type Multi-size SIM (compatible with standard, micro, and nano SIM slots)
Coverage area(*2) Can be used in Japan wherever NTT DOCOMO 4G (LTE) or 3G service is available.
Supported languages
  • Text on SIM card packaging: Japanese, English, Chinese (simplified)
  • Instruction manual: Japanese, English, Chinese (simplified/traditional), Korean, Thai
  • Service website: Japanese, English, Chinese
  • Telephone support: Japanese, English, Chinese (9:00 a.m. to 7:00 p.m. JST, 7 days a week)
Where sold Please see the service website (
  • (*)Japan Travel SIM is for data use only. It cannot be used for voice or short message service.
  • (*)Switching to a monthly plan using this SIM card is not supported. Once the usage period has ended, it will no longer be possible to add data to the SIM card.
  • (*)On a SIM-locked device, it is necessary to perform an unlocking procedure before this card can be used.
  • (*)The currently sold 1.5G (30 days) product will no longer be available after the existing stock has sold out.
  • (*1)Additional data capacity can be purchased by using an IIJmio Coupon Card or Brastel Card. The additional data can be used until the end of the third month after it was added.
  • (*2)The theoretical maximum speed. Actual communication speeds are device dependent. 3G can be used in locations where 4G (LTE) is not available.

See the following site for details of Japan Travel SIM.

Available from

Tuesday, July 25, 2023

Photo of packaging

Photo of packaging

IIJ will continue endeavoring to provide highly convenient services that enable visitors to Japan to enjoy stress-free use of mobile data communications.

About IIJ

Founded in 1992, IIJ is one of Japan's leading Internet-access and comprehensive network solutions providers. IIJ and its group companies provide total network solutions that mainly cater to high-end corporate customers. IIJ's services include high-quality Internet connectivity services, systems integration, cloud computing services, security services and mobile services. Moreover, IIJ has built one of the largest Internet backbone networks in Japan that is connected to the United States, the United Kingdom and Asia. IIJ was listed on the Prime Market of the Tokyo Stock Exchange in 2022.

The statements within this release contain forward-looking statements about our future plans that involve risk and uncertainty. These statements may differ materially from actual future events or results.

For inquiries, contact

IIJ Corporate Communications

  • (*) All company names and service names used in this press release are the trademarks or registered trademarks of their respective owners.

Get Adobe Acrobat Reader

End of the page.

Top of Page