Application process
(J:COM MOBILE)

Start using from application
Introducing the flow to
Easy-to-understand guidance on how to transfer

Call the following
Please contact us.

  • If the policyholder is a minor

  • Those who wish to enter into a corporate contract

Click here for details

Flow to use

Please select the desired product.

Please select the type of SIM.

Choose to keep your phone number or make a new number.

Those who want to use SIM Card without changing their current smartphone and phone number

Step 1

Operation check/
SIM unlock

SIM unlock

1Check if the device can be used

Please check if the device can be used from the operation check terminal checker.

Device compatibility check

2 SIM unlock

If the device is SIM locked, it must be unlocked in advance.

Unlocking SIM Cards
Step.2

Get MNP reservation number

MNP reservation number (image)

Please obtain the "MNP reservation number" from your mobile phone company.

Click here for how to obtain
Step.3

Apply from the web

Application image

Select the device, SIM, price plan and option you want to purchase.

Customers who wish to use multiple lines can apply after starting to use the first line.

Items required for application

Identity verification documents
1Image data of identity verification documents

Please prepare an identity verification document for "J:COM subscriber" that shows your current address.

  • When applying from a smartphone, you can choose eKYC (online identity verification) or image upload.

View available identity verification documents

Learn more about eKYC (Online Identity Verification)


MNP reservation number
2 MNP reservation number
  • To apply for J:COM MOBILE, your MNP reservation number must be valid for at least 10 days.

First-time users

credit card
3 credit cards

See available cards


User J:COM

J:COM Personal ID
4 J:COM Personal ID

If you are currently using J:COM service, you will need your J:COM Personal ID (contractor ID) to apply.

If you do not have one, please register here and apply.

You will need the last 4 digits of your registered payment information. Please have them ready.
Click here for more information about J:COM Personal ID

J:COM MOBILE Application

  • If you are currently using J:COM service, please apply as the J:COM service subscriber. (The contract name will be the same)
  • If any of the users are minors, it is necessary to subscribe and set up a filtering service. Click here for details
  • If there are any issues with the information you have submitted online, you will be required to confirm the details and follow the official application procedures at a later date.
Step 4

Receipt

Receipt image

After inspection *1, the package will be delivered to the address in your contract.
For customers who did not complete the contract online, J:COM will contact you by phone.

  • We will conduct a membership screening at the time of contract application acceptance. Depending on the results of the review, we may not be able to accept your application, or you may be required to submit payment method restrictions or additional documents.
Step.5

Start using after the opening procedure

When you receive it, please check the enclosed materials and proceed with the opening procedure.

J:COM support will also provide information. Please check here.

Those who want to keep their current smartphone and use SIM Card with a new phone number

Step 1

Operation check/
SIM unlock

SIM unlock

1Check if the device can be used

Please check if the device can be used from the operation check terminal checker.

Device compatibility check

2 SIM unlock

If the device is SIM locked, it must be unlocked in advance.

Unlocking SIM Cards
Step.2

Apply from the web

Application image

Select the device, SIM, price plan and option you want to purchase.

Customers who wish to use multiple lines can apply after starting to use the first line.

Items required for application

Identity verification documents
1Image data of identity verification documents

Please prepare an identity verification document for "J:COM subscriber" that shows your current address.

  • When applying from a smartphone, you can choose eKYC (online identity verification) or image upload.

View available identity verification documents

Learn more about eKYC (Online Identity Verification)


First-time users

credit card
3 credit cards

See available cards


User J:COM

J:COM Personal ID
3 J:COM Personal ID

If you are currently using J:COM service, you will need your J:COM Personal ID (contractor ID) to apply.

If you do not have one, please register here and apply.

You will need the last 4 digits of your registered payment information. Please have them ready.
Click here for more information about J:COM Personal ID

J:COM MOBILE Application

  • If you are currently using J:COM service, please apply as the J:COM service subscriber. (The contract name will be the same)
  • If any of the users are minors, it is necessary to subscribe and set up a filtering service. Click here for details
  • If there are any issues with the information you have submitted online, you will be required to confirm the details and follow the official application procedures at a later date.
Step.3

Shipping/receiving products

Receipt image

After inspection *1, the package will be delivered to the address in your contract.
For customers who did not complete the contract online, J:COM will contact you by phone.

[Initial setting method]

  • We will conduct a membership screening at the time of contract application acceptance. Depending on the results of the review, we may not be able to accept your application, or you may be required to submit payment method restrictions or additional documents.

Choose to keep your phone number or make a new number.

Those who want to use eSIM without changing their current smartphone and phone number

What you need for the procedure

Smartphone with eSIM

Networks such as Wi-Fi

It is used in the opening procedure.

Other terminals

* Since eSIM requires the use of eKYC, you can apply only from your smartphone.

*Other terminals are for displaying the QR code for profile download.

Step 1

Operation check/
SIM unlock

SIM unlock

1Check if the device can be used

Please check if the device can be used from the operation check terminal checker.

Device compatibility check

2 SIM unlock

If the device is SIM locked, it must be unlocked in advance.

Unlocking SIM Cards
Step.2

Get MNP reservation number

MNP reservation number (image)

Please obtain the "MNP reservation number" from your mobile phone company.

Click here for how to obtain
Step.3

Apply from the web

Application image

Please select a rate plan option.

Customers who wish to use multiple lines can apply after starting to use the first line.

Items required for application

Identity verification documents
1Image data of identity verification documents
  • Driver's license (driving history certificate)
  • My number card (personal number card)
  • Residence card (or special permanent resident certificate)
  • Since eSIM requires the use of eKYC, you can apply only from your smartphone.
  • You cannot apply for an eSIM if your identity verification documents and your current address are different. Apply for SIM Card. Click here for details

Learn more about eKYC (Online Identity Verification)


MNP reservation number
2 MNP reservation number
  • To apply for J:COM MOBILE, your MNP reservation number must be valid for at least 10 days.

First-time users

credit card
3 credit cards

See available cards


User J:COM

J:COM Personal ID
4 J:COM Personal ID

If you are currently using J:COM services, you will need J:COM Personal ID to apply.

If you do not have one, please register here and apply.

You will need the last 4 digits of your registered payment information. Please have them ready.
Click here for more information about J:COM Personal ID

Please apply from your smartphone.

QR code

J:COM MOBILE Application

  • Minors cannot apply.
  • If there are any issues with the information you have submitted online, you will be required to confirm the details and follow the official application procedures at a later date.
Step 4

Opening procedure

Application image

Please follow the instructions in the email you receive after applying.

  • We will conduct a membership screening at the time of contract application acceptance. Depending on the results of the examination, we may not be able to accept your application.

MNP transfer procedure

Please log in to My Page and enter the required information according to the procedure.
For details, please check the MNP transfer procedures.

eSIM profile download

You will receive an eSIM profile download guide email.
Follow the steps from the URL in the email to make the settings.
For details, please check the eSIM activation procedure.

Learn more

Step.5

Start using

If you have any problems after starting to use the service, please contact J:COM Support.

Those who want to keep their current smartphone and use eSIM with a new phone number

What you need for the procedure

Smartphone with eSIM

Networks such as Wi-Fi

It is used in the opening procedure.

Other terminals

* Since eSIM requires the use of eKYC, you can apply only from your smartphone.

*Other terminals are for displaying the QR code for profile download.

Step 1

Operation check/
SIM unlock

SIM unlock

1Check if the device can be used

Please check if the device can be used from the operation check terminal checker.

Device compatibility check

2 SIM unlock

If the device is SIM locked, it must be unlocked in advance.

Unlocking SIM Cards
Step.2

Apply from the web

Application image

Please select a rate plan option.

Customers who wish to use multiple lines can apply after starting to use the first line.

Items required for application

Identity verification documents
1Image data of identity verification documents
  • Driver's license (driving history certificate)
  • My number card (personal number card)
  • Since eSIM requires the use of eKYC, you can apply only from your smartphone.
  • You cannot apply for an eSIM if your identity verification documents and your current address are different. Apply for SIM Card. Click here for details

Learn more about eKYC (Online Identity Verification)


First-time users

credit card
3 credit cards

See available cards


User J:COM

J:COM Personal ID
4 J:COM Personal ID

If you are currently using J:COM services, you will need J:COM Personal ID to apply.

If you do not have one, please register here and apply.

You will need the last 4 digits of your registered payment information. Please have them ready.
Click here for more information about J:COM Personal ID

Please apply from your smartphone.

QR code

J:COM MOBILE Application

  • Minors cannot apply.
  • If there are any issues with the information you have submitted online, you will be required to confirm the details and follow the official application procedures at a later date.
Step.3

Opening procedure

Application image

Please follow the instructions in the email you receive after applying.

  • We will conduct a membership screening at the time of contract application acceptance. Depending on the results of the examination, we may not be able to accept your application.

eSIM profile download

You will receive an eSIM profile download guide email.
Follow the steps from the URL in the email to make the settings.
For details, please check the eSIM activation procedure.

Learn more

Step 4

Start using

If you have any problems after starting to use the service, please contact J:COM Support.

Choose to keep your phone number or make a new number.

Those who want to purchase a new smartphone without changing their phone number

Step 1

Get MNP reservation number

MNP reservation number (image)

Please obtain the "MNP reservation number" from your mobile phone company.

Click here for how to obtain
Step.2

Apply from the web

Application image

Select the device, SIM, price plan and option you want to purchase.

Customers who wish to use multiple lines can apply after starting to use the first line.

Items required for application

Identity verification documents
1Image data of identity verification documents

Please prepare an identity verification document for "J:COM subscriber" that shows your current address.

  • When applying from a smartphone, you can choose eKYC (online identity verification) or image upload.

View available identity verification documents

Learn more about eKYC (Online Identity Verification)


MNP reservation number
2 MNP reservation number
  • To apply for J:COM MOBILE, your MNP reservation number must be valid for at least 10 days.

First-time users

credit card
3 credit cards

See available cards


User J:COM

J:COM Personal ID
4 J:COM Personal ID

If you are currently using J:COM service, you will need your J:COM Personal ID (contractor ID) to apply.

If you do not have one, please register here and apply.

You will need the last 4 digits of your registered payment information. Please have them ready.
Click here for more information about J:COM Personal ID

J:COM MOBILE Application

  • If you are currently using J:COM service, please apply as the J:COM service subscriber. (The contract name will be the same)
  • If any of the users are minors, it is necessary to subscribe and set up a filtering service. Click here for details
  • If there are any issues with the information you have submitted online, you will be required to confirm the details and follow the official application procedures at a later date.
Step.3

Receipt

Receipt image

After inspection *1, the package will be delivered to the address in your contract.
For customers who did not complete the contract online, J:COM will contact you by phone.

  • We will conduct a membership screening at the time of contract application acceptance. Depending on the results of the review, we may not be able to accept your application, or you may be required to submit payment method restrictions or additional documents.
Step 4

Start using after the opening procedure

When you receive it, please check the enclosed materials and proceed with the opening procedure.

J:COM support will also provide information. Please check here.

Those who want to purchase a new smartphone with a new phone number

Step 1

Apply from the web

Application image

Select the device, SIM, price plan and option you want to purchase.

Customers who wish to use multiple lines can apply after starting to use the first line.

Items required for application

Identity verification documents
1Image data of identity verification documents

Please prepare an identity verification document for "J:COM subscriber" that shows your current address.

  • When applying from a smartphone, you can choose eKYC (online identity verification) or image upload.

View available identity verification documents

Learn more about eKYC (Online Identity Verification)


First-time users

credit card
3 credit cards

See available cards


User J:COM

J:COM Personal ID
3 J:COM Personal ID

If you are currently using J:COM service, you will need your J:COM Personal ID (contractor ID) to apply.

If you do not have one, please register here and apply.

You will need the last 4 digits of your registered payment information. Please have them ready.
Click here for more information about J:COM Personal ID

J:COM MOBILE Application

  • If you are currently using J:COM service, please apply as the J:COM service subscriber. (The contract name will be the same)
  • If any of the users are minors, it is necessary to subscribe and set up a filtering service. Click here for details
  • If there are any issues with the information you have submitted online, you will be required to confirm the details and follow the official application procedures at a later date.
Step.2

Shipping/receiving products

Receipt image

After inspection *1, the package will be delivered to the address in your contract.
For customers who did not complete the contract online, J:COM will contact you by phone.

[Initial setting method]

  • We will conduct a membership screening at the time of contract application acceptance. Depending on the results of the review, we may not be able to accept your application, or you may be required to submit payment method restrictions or additional documents.

Precautions when making a contract


About the use of persons under the age of 18

If a youth under the age of 18 uses J:COM MOBILE, it is necessary to set up a filtering service.

J:COM will provide "Anshin Filter for J:COM" free of charge to eligible users.
It is mandatory by law for young people to subscribe to a filtering service. On April 1, 2009 (Wednesday), the ``Act on Creating an Environment for Youth to Use the Internet Safely and Securely'' went into effect.

  • eSIM users, users over the age of 18, and corporate contracts are not eligible.
  • Click here for details on the Law Concerning the Development of an Environment Where Youth Can Use the Internet Safely and Securely

About payment

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 the 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.

When using dual SIM
About notes

When using multiple SIM Card /eSIM lines on some smartphones (when using the dual SIM function), a data communication dedicated SIM line that cannot be used for voice calls can be used for "mobile data communication". If you set it as a line, you may not be able to make calls to emergency agencies (110/118/119).

You can make calls to emergency organizations by setting a "SIM line that allows voice calls" to the line for "mobile data communication".
We would like to ask customers who use the target models to be careful.

Select the target iPhone model
To customers using

We have confirmed that this issue will be resolved by updating to iOS 15.2 delivered on Tuesday, December 14, 2021.
After the update, please make a normal voice call (call to non-emergency organizations) by the customer's operation and confirm that the call function can be used without problems.

In addition, customers using iOS 15.1.1 or lower can make calls to emergency organizations by the method described above (setting a "SIM line that allows voice calls" to the line for "mobile data communication"). .

(As of December 2021)

<iPhone device>
iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max
*15 models (as of September 2021)
<Android device>
There are no Android devices that are eligible for this service.

FAQ

We introduce frequently asked questions from customers.
If you have any questions, please contact us by phone or chat.

About contracts and fees

Procedures such as contracting and changing models are cumbersome.

You can apply easily from the website. Free 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.

Can I apply for multiple lines?

A maximum of 5 lines can be subscribed to under one contract name.

What happens to the name of the contract if my family members have separate contracts for lines?

The contract name will be the same.

Only eSIM (A plan SU) can be contracted under a separate name. However, you may not be able to receive benefits such as Date Mori.

For example, if you have a contract with J:COM in your husband's name.

  • Your husband has a contract with Company A → MNP to J:COM MOBILE
  • Contract with D company in wife's name → MNP to J:COM MOBILE
  • Contract with S company in your child's name → MNP to J:COM MOBILE

In this case, both the wife and children are contracted in the name of the master.

I have a contract for multiple lines in my family. Can my family pay the monthly usage fee separately?

You cannot pay separately.

Only one type of payment information is required to be registered at the time of contract.

Can I subscribe to J:COM MOBILE no matter where I live in Japan?

J:COM MOBILE can now be applied for nationwide from September 17, 2020.

You can also use this service even if you live outside of J:COM 's cable TV service area.

I am using J:COM for the first time. Can I sign a contract for only J:COM MOBILE?

Yes, you can subscribe to J:COM MOBILE alone.

You can check it easily from the smartphone charge simulation, so please try it.

Is there an examination at the time of contract?

J:COM will conduct a membership screening when accepting contract applications. Please note that we may not be able to accept your application depending on the results of the screening.

About data migration

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)

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 "remote control"!

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.

About communication and data

What is the communication area of J:COM MOBILE? I'm worried about whether it will connect properly.

J:COM MOBILE A Plan line is the same as au. You can connect without problems even in the suburbs or the city center.

J:COM is part of the same group as major carrier au. J:COM MOBILE A Plan uses the au line, and the communication and calling areas will also follow this.

Click here for details

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 details such as the expiration date.

What happens if I exceed my data usage limit?

If you exceed the upper limit, it will be limited to 1 Mbps or 200 kbps depending on your subscription plan.

If the total amount of data used in the current month exceeds the monthly data volume (including additional data and carry-over data), the communication speed will be restricted as follows until the end of the month.

  • Customers with a 10GB/20GB contract: maximum transmission/reception of 1Mbps
  • Customers with a 1GB/5GB contract: maximum transmission/reception of 200kbps

However, if you want to return to normal speed, you can purchase additional data. You can check the remaining data capacity in the app.
Please see this page for details.

Can J:COM MOBILE smartphones be used overseas?

Calls can be used overseas, but data communication is not available.
Please use Wi-FI for email and internet connection.

J:COM MOBILE can be used overseas with the "International Roaming Service (au World Service)" for calls and SMS only.
Mobile data communication is not available overseas, so if you want to use email or the Internet overseas, please use an overseas Wi-Fi router or local Wi-Fi connection service.

Click here for details on how to use overseas

PR Wi-Ho!, where you can rent a Wi-Fi router for overseas use!
Click here for details

About options

Can I use tethering?

It supports tethering.

Terminals handled by J:COM MOBILE support tethering.

What kind of SD card should I prepare?

Please purchase a "microSD card". At J:COM MOBILE, you can purchase it at the time of purchasing a "device".

J:COM MOBILE sells microSD cards with a capacity of 128GB as an accessory.
If 128GB is not enough for you, you can purchase it at electronics retailers, but the types of microSD cards that can be used and the maximum capacity differ depending on the model.
When making a purchase, please show the following information to the store staff so that your purchase can go smoothly.

  • <Supports up to microSDXC 1TB>
    BASIO active/Galaxy A23 5G/AQUOS wish/AQUOS sense6s/Galaxy A21/AQUOS sense5G
  • <Supports up to microSDXC 512GB>
    AQUOS sense3/Galaxy A30/Galaxy A20/Galaxy Tab A/BASIO4
  • <Supports up to microSDXC 256GB>
    AQUOS L2/HUAWEI P20 lite/BASIO3/HUAWEI MediaPad T5
  • <Supports up to microSDXC 200GB>
    LG X screen/arrows M03/LG G Pad 8.0 III
  • <Supports up to microSDXC 128GB>
    HUAWEI P10 lite/LG G Pad 8.0 L Edition/Xperia Z2 Tablet
  • <Supports up to microSDHC 32GB>
    LG Wine Smart/arrows M02

We do not guarantee the operation of any accessories other than those handled by J:COM MOBILE. Please note.

Does J:COM MOBILE have an "Unlimited calls" plan?

We offer an optional flat-rate call service, “Unlimited calls”.

With this service, domestic calls of up to 5 minutes or 60 minutes are free of charge as many times as you like.

Click here for details on "Unlimited calls"

Can I use Unlimited calls with any plan?

Unlimited calls is only available to subscribers of J:COM MOBILE A Plan.

It cannot be used with J:COM MOBILE D plan SIM Card. Please note.

What kind of warranty and support system do you have in case of terminal failure or loss?

We offer a wide variety of options, from free repair services to warranty options in preparation for unexpected troubles such as dropping, submersion, and loss of devices.

In the case of a terminal failure, if it is within a certain period of time after purchasing the terminal and the failure is natural, we will repair it free of charge.

If a certain period of time has passed after purchase, it will be charged. Click here for the free warranty period for each product

If you want to prepare for troubles that cannot be covered by repairs or the loss of your device, you can use the paid option "Safe Terminal Warranty 48", "Device Warranty for iPhone" for au Certified iPhones (certified second-hand goods), and "AppleCare+" for iPhones. for iPhone" is recommended.

Additionally, if you are looking for more comprehensive support, we recommend Enkaku Support, where you can consult with specialized staff as many times as you like for J:COM TV, NET, etc.
Please refer to the following for more information.

[About the amount including tax]

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