plan change

Please apply using the dedicated application form.

For customers with multiple line contracts, J:COM MOBILE Saikyo Young Wari or
If you would like to take advantage of Senior 60 wari please contact us by phone.
Learn more

Rate plan

Date Mori
When applied

5GB

10GB

20GB

30GB

Increase your data by combining with J:COM services

Monthly fee

980yen

(1,078 yen including tax)

*Not eligible for the campaign

6 months

500yen

(550 yen including tax)

6 months

1,000yen

(1,100 yen including tax)

6 months

1,500yen

(1,650 yen including tax)

When Saikyo Young Wari and Senior 60 wari are applied

1,480yen

(1,628 yen including tax)

1,980yen

(2,178 yen including tax)

2,480yen

(2,728 yen including tax)

This price will remain the same even after the 7th month!

After the speed limit
speed

Up to200kbps

Up to1Mbps

Data Carryover

Any unused data will be used the following month.
Automatically carry over

Voice Calls

(Domestic calls)

Unlimited calls (5 minutes/call)

500yen
(550 yen including tax)

Unlimited calls (60 minutes/call)

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

Domestic calls: 20 yen (22 yen including tax)/30 seconds

About J:COM MOBILE A Plan ST/SU

J:COM MOBILE Saikyo Young Wari is for those under 22 years old and their families. Click here for applicable conditions.
Senior 60 wari discount (monthly discount) is available to those aged 60 or over and their families. Click here for applicable conditions.
With Date Mori applied, 1GB will be increased to 5GB, 5GB will be increased to 10GB, 10GB will be increased to 20GB, and 20GB will be increased to 30GB. See here for applicable conditions.
Separate universal service fees, telephone relay service fees, and call and SMS communication fees are required.

Overview of Date Mori

View J:COM MOBILE A plan

Data capacity	1 GB	5GB	10GB	20GB
Long-term type S	980 yen (1,078 yen including tax)	2,980 yen (3,278 yen including tax)	3,980 yen (4,378 yen including tax)	4,980 yen (5,478 yen including tax)
Standard type	1,380 yen (1,518 yen including tax)	3,680 yen (4,048 yen including tax)	4,680 yen (5,148 yen including tax)	5,680 yen (6,248 yen including tax)

Prices as of February 17, 2021. Discounts are not reflected in the displayed amount.

Please check My Page for the plan you are currently enrolled in.

Plan change flow

Step 1

Check your current plan

You can check your current plan, billing amount, and device installment payment status on My Page or the MY J:COM app.

My page is here

Click here to download the app

Step.2

Apply online

Please use the dedicated application form to apply for a plan change.

J:COM Personal ID (contractor ID) is required. Please log in and complete the procedure.

Customers with multiple line contracts or who wish to take advantage of J:COM MOBILE Saikyo Young Wari or Senior 60 wari, please contact us by phone.

AM 9:00~PM 6:00 [Open all year round]

eSIM plan change

How to change eSIM data capacity

If you want to change the data capacity of eSIM, please apply from the button below.

Those who change from SIM Card to eSIM

If you want to change from SIM Card to an eSIM, please apply by phone.

AM 9:00~PM 6:00 [Open all year round]

Step.3

Content confirmation/end of change

At a later date, we will contact you and carry out the procedures for the change.

Please apply using the dedicated application form.

Notes on changing plans

If you are subscribed to "J:COM MOBILE A Plan" and want to change from your current plan to "J:COM MOBILE A Plan ST/SU", there are some things to keep in mind.

There are no contract cancellation fees or other fees associated with plan changes.
Due to the plan change, the discount currently applied to "J:COM MOBILE A Plan" will end. Therefore, if you currently have a device discount applied to your device payment (when you sign up for a new subscription) and have an installment remaining, after you change your plan, the device discount will no longer apply and you will be able to pay the remaining device fee without any discount. Payment will be made.
The new plan "J:COM MOBILE A Plan ST/SU" does not apply the smartphone more program, so you will not be able to use the half price assist after changing the plan.
Customers who wish to apply for the "J:COM MOBILE Saikyo Young Wari" or "Senior 60 wari Discount (Monthly Fee)" cannot apply online. If you wish to apply, please contact J:COM Customer Center (0120-999-000).
Click here for the conditions for J:COM MOBILE 's Saikyo Young Wari
Click here for the conditions for applying for Senior 60 wari (monthly fee)

[About the amount including tax]

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