General
PAYG Data SIM is a prepaid SIM card which is a combination of Data communication service. You can use a Max. of 3GB of data within 14 days.
No, you can not.
No, SMS is not available.
No, MMS is not available.
The PAYG Data SIM is intended for use by people who are visiting Japan. Japanese people living abroad can also use this SIM. However, in the past, if JCI observed any violation of terms of use, the service was involuntarily terminated.
No, the subscription process is available only online.
To use the internet, please set up the APN of the device at hand.
The APN (Access Point Name) is a network path for all cellular data connectivity. By setting the APN, your device allows you to use PAYG Data SIM.
It is possible to make VoIP calls, however the quality of the call will depend on the condition, time and traffic of the connection.
We have standard, micro and nano size.
No it is not possible.
As long as the device which you use is compatible with our SIM, you can interchange your devices using the same SIM.
The b-mobile SIM supports tethering, but please check that your device allows tethering.
No, you cannot use PAYG Data SIM outside of Japan.
It is for use only within Japan.
We would appreciate it if you can return the SIM card to the following address:
Japan Communications Inc. b-mobile Helpdesk, SIM Card Returns
Zip code:105-0001, 4-1-28 Toranomon Towers office, Toranomon, Minato-ku, Tokyo
There is no penalty or extra charge for not returning the SIM card.
Mailing at expense of customer.
Please see the Supported Device page for devices that we can assure compatibility.
The use of the PAYG Data SIM with devices not found on this list would be at the risk of the customer.
Yes. You can charge the card during the period of use and 10 days after the expiration of the card. After charging your SIM, you can continue using it.
Yes, the PIN code is "0000".
Please contact our b-mobile English Helpdesk.helpdesk@j-com.co.jp
You can always check your service period days from the User Page.
No. there is not.
To maintain service quality for all users, JCI reserves the right to restrict the data transmission speed for customers who have used more than approximately 1GB over three consecutive days including the current day.
Some automatic data communication may occur without your direct approval or even awareness depending on your device.
Purchase
You can purchase from the following Hotels.
Please see "Where to purchase" page for details.
Once an order is completed, we will not provide refunds or cancel orders for any reason.
Lost or broken
Please contact b-mobile English Helpdesk.
Our helpdesk operator can assist you by suspending your service so others cannot use it, as well as reactivating your service when you find your SIM card.
No.Please purchase a new SIM card.
Please contact us by email or by phone and let us know your SIM phone number so that we may check the condition of your SIM. In our experience it is fairly rare that the SIM card is faulty and in most cases the problem lies in the set up of the SIM in the respective device.
About support
Please contact b-mobile English Helpdesk.
Before purchase: You do not need to prepare anything.
After purchase : Please have your SIM card, PAYG Data SIM Package and your smartphone ready.