Rate plan

monthly fee


Data capacity 1 GB 5GB 10GB 20GB
Date Mori
When applied
5GB 10GB 20GB 30GB
monthly fee

980 yen

(1,078 yen including tax)

This price all the time!

1,480 yen

(1,628 yen including tax)

1,980 yen

(2,178 yen including tax)

2,480 yen

(2,728 yen including tax)

after speed limit
Data carryover Remaining data capacity will be used in the next month
carry over automatically
voice call
(domestic call)

Unlimited calls (5 minutes/time)

500 yen
(550 yen including tax)

Unlimited calls (60 minutes/time)

1,500 yen
(1,650 yen including tax)

Domestic call 20 yen (22 yen including tax)/30 seconds
  • 1GB is 5GB with Date Mori data, 5GB is 10GB with additional data, 10GB is 20GB with additional data, and 20GB is 30GB with additional data. Click here for applicable conditions
  • Separate universal service fees, telephone relay service fees, call charges, SMS service charges, etc. are required.
  • A contract administration fee of 3,000 yen (3,300 yen including tax) is required. (Excluding Plan A SU) However, if you subscribe to other J:COM services as a new or additional service at the same time, J:COM MOBILE's contract administration fee may be waived.

contract cancellation fee

contract period binding

WEB application only
No initial cost

Unlimited calls pack

Unlimited calls and data capacity
Combine this amount!

Easy ♪ pack

1,480 yen per month
(1,628 yen including tax)

Data capacity 5GB*

Unlimited calls (5 minutes / time)

Perfect ♪ pack

1,980 yen per month
(2,178 yen including tax)

Data capacity 10GB*

Unlimited calls (5 minutes / time)


When 1GB is increased to 5GB and 5GB is increased to 10GB by applying Date Mori. Click here for applicable conditions
It is also possible to combine other data capacities and Unlimited calls.

other services

Children's plan

Your child's smartphone debut
whole thing Leave it to J:COM!

Children's plan
see more

senior plan

Unlimited calls for 6 months free!
5G 1,078 yen (tax included) ~

senior plan
see more


About data communication

Remaining data capacity
Carryover OK
*The remaining amount is valid until the end of the following month.
the missing data
Can be purchased online
The expiry date for additional data is
Purchase date + 90 days

Highly secure Wi-Fi
Free to use

Public wireless LAN (Wi-Fi) in the city can be used

As a perk, you can use highly secure public wireless LAN (Wi-Fi) for free. It also comes with VPN protection, so you can use free Wi-Fi with peace of mind. It's convenient because it saves on data charges when downloading large-volume apps on the go.

Apps that can use public wireless LAN (Wi-Fi)
"Giga elephant Wi-Fi"

You can use it for free! *1

Tethering can be used for free!

Even if you don't have a mobile Wi-Fi router, you can use your PC or game console to connect to the Internet regardless of whether you're indoors or outdoors.

Information on payment methods

In principle, J:COM MOBILE charges can only be paid by credit card. Acceptable credit cards are those with the following marks.

  • Debit cards are not accepted.

Handling credit company

It can be used to pay for products (terminals, etc.) and monthly usage charges. Matters related to the date of withdrawal from the credit card settlement account and payment are based on the membership agreement stipulated by the designated credit card company and the terms and conditions and special agreements stipulated by our company. In principle, please specify a credit card in the name of the contractor.

  • If User J:COM and would like to use bank account transfer, you can also use bank transfer directly.

Here is what you need when signing a contract

Notes regarding contracts

  • To sign a contract, a document confirming the identity of the contracting party is required.
  • Contract changes, option additions, etc. are limited to applications from the contract holder. In addition, a separate fee is required for each change.
  • Service suspension is possible only if you wish to suspend service usage to prevent unauthorized use such as theft or loss. However, basic charges and optional service usage charges will be incurred even during the service suspension period.
  • The usage start month is billed on a daily basis.

About A Plan ST
(SIM Card /device set)

  • You can subscribe up to 5 lines per household.
  • If the total amount of data used in the current month exceeds the monthly data volume (including additional data and carry-over data), the maximum transmission/reception speed is [1GB/5GB] 200kbps/[10GB/20GB] 1Mbps until the end of the month.
  • SIM unlock may be required.
  • If you do not receive the product (device, etc.) within 7 days after the estimated arrival date due to your absence, etc., usage charges may be incurred from the 8th day including the estimated arrival date.
  • Terminals designated by our company can be purchased for each line from the 13th month after the first billing start month of the previously purchased J:COM MOBILE terminal.

About A Plan SU

  • A maximum of 5 lines can be subscribed under the name of one subscriber.
  • If the total amount of data used in the current month exceeds the monthly data volume (including additional data and carry-over data), the maximum transmission/reception speed is [1GB/5GB] 200kbps/[10GB/20GB] 1Mbps until the end of the month.
  • SIM unlock may be required.

Contract terms, etc.

If you are considering signing up or adding services

Sign Up information


Procedures such as contracting and changing models are cumbersome.

You can easily apply online. Visiting support is also available upon request.

You can apply for J:COM MOBILE online. You can complete the process from the comfort of your own home, so there is no need to go to a store and wait for a long time.

Once you receive your smartphone, you can receive free support if you wish. We will provide detailed instructions on how to use your smartphone, as well as the initial settings.

About initial setup support

  • Those applying for "J:COM MOBILE D Plan SIM Card" are not eligible.
I want to transfer data such as my phone book to a new smartphone, what should I do?

Solve difficult settings at home. Leave the initial settings of your smartphone to Enkaku Support!

J:COM MOBILE provides free support that provides detailed instructions on initial settings, migration of phonebook data, instructions on how to use the service, etc. for those who wish to do so.

Click here for details

Can I continue to use the email address I'm currently using on my J:COM MOBILE smartphone?

If you are using a free email service such as Gmail, you can continue to use it by logging in or setting up a new device.

Please note that if you are using an email address (domain) issued by some telecommunications companies, you will not be able to use it.

  • There are some services that allow you to continue using carrier mail even after canceling your carrier. Please refer here for details.

J:COM MOBILE does not issue email addresses, so we recommend that you switch to a free email such as G-mail in advance.

Can I carry over unused data usage?

Unused data traffic will be automatically carried over to the next month.

*The remaining amount is valid until the end of the following month.

If the upper limit is exceeded, the speed will be limited to 1Mbps or 200kbps depending on the plan you subscribe to. In addition to the data usage of your contract plan, you can also carry over any additional data usage you purchase to the next month.

Please check here for more information, including expiration dates.

Can I continue to use LINE on my new device?

By completing the appropriate settings and procedures, you can continue to use the service on your new device.

Regarding account migration (handover) procedures, security is regularly strengthened, so please check the latest information on LINE's official blog before proceeding.
(*Please note that settings may be required before changing the model)

How to transfer your LINE account (as of July 2017)

[About the amount including tax]

  • Consumption tax differences may occur due to changes in the consumption tax rounding method under the invoice system.