Call charges/SMS communication charges
Call charge
| Domestic call charges | 20 yen (22 yen including tax) / 30 seconds |
|---|---|
| International call charges/overseas roaming call charges | Complies with au international calling and international roaming charges |
Click here for international roaming service (GLOBAL PASSPORT) for use overseas (KDDI site)
- Separate charges apply for the broadband universal service fee, telephone universal service fee, telephone relay service fee, call charges, SMS communication charges, etc.
Click here for information on charges for various options and accessories such as unlimitedUnlimited calls for 5 minutes, terminal guarantee,answering service, etc.
SMS communication charges
For sending long text SMS, the charge will be according to the number of characters as follows. Receiving is free.
Domestic transmission
| Number of characters sent | transmission fee |
|---|---|
| 70 double-byte characters or less | 3 yen (3 yen including tax)/ message |
| 134 double-byte characters or less | 6 yen (6 yen including tax)/ message |
| 135 full-width characters or more | 9 yen (9 yen including tax)/ message +3 yen for every 67 double-byte characters (3 yen including tax) |
(Example) 336 to 402 full-width characters: 18 yen (19 yen including tax)/message
International transmission
| Number of characters sent | transmission fee |
|---|---|
| 70 double-byte characters or less | 100 yen/message |
| 134 double-byte characters or less | 200 yen/message |
| 135 full-width characters or more | 300 yen/message +100 yen for every 67 double-byte characters |
(Example) 336 to 402 double-byte characters: 600 yen/message
About using overseas
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:
Enjoy affordable eSIM usage abroad with our travel eSIM (by Airalo)
Click here for details
FAQ
Procedures such as contracting and changing models are cumbersome.
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.
スマホがお手元に届いてからは、ご希望の方には訪問のサポートを受けていただくこともできます。初期設定はもちろん、スマホの使い方も丁寧に説明します。
お住まいの地域によって、訪問サポートが対象外の場合がございます。詳しくはお問い合わせください。
I want to know about support after joining
We offer a wide range of contact methods, from inquiries by phone or chat to guidance on our homepage with support information. In addition, by subscribing to Enkaku Support (550 yen per month (tax included)), you can receive remotely operated support from an operator.
Where can I check what plan I have?
You can check the plan you are subscribed to with J:COM MOBILE on My Page.
Where can I see my call details?
You can check your J:COM MOBILE call details on My Page.
I want to transfer data such as my phone book to a new smartphone, what should I do?
J:COM MOBILEでは、ご希望の方には初期設定や電話帳データの移行、使い方説明など無料のサポートにて丁寧にご説明します。
無料の初期設定サポートは新規ご契約時1回のみとなります。
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.
アカウントの移行（引き継ぎ）方法につきましては、定期的にセキュリティが強化されております。LINE公式サイトより最新情報をご確認のうえ、お手続きください。
（※機種変更前に設定が必要な場合がありますので、ご注意ください。）
If you are considering signing up or adding services
Sign Up information
New customers
Contact us by phone
(Free call)0120-989-970
9:00-18:00 [Open all year round]
[Notes]
[Send SMS]
- For some models that support long text SMS, the SMS sending fee varies depending on the number of characters. For details, please refer to the "J:COM MOBILE Contract Terms and Conditions."
- Depending on the recipient's model, long SMS messages may be received in parts or may not be sent at all depending on the destination.
- You can send up to 200 SMS per day.
[International call service]
- Depending on the country or region you are calling, you may not be able to connect due to local carrier reasons.
- For the latest call rates, please visit the au homepage.
[International SMS]
- If you have switched to MNP, you may not be able to send or receive international SMS.
- Communication charges will be incurred when sending. Depending on the circumstances of the local carrier, communication charges may be incurred even if the transmission is not completed.
[International roaming]
- Call charges vary depending on the area.
- Sending an SMS requires a sending fee of 100 yen (tax-free) per message.
[About the amount including tax]
- Consumption tax differences may occur due to changes in the consumption tax rounding method under the invoice system.
