Telecommunications network is essential to our lifestyle. However, you may be concerned with the price, procedures, support, etc. SEIKOU SIM provides support through the telecommunications environment so that people especially from other parts of Asia can live in Japan with peace of mind.
SEIKOU SIM is “on your side” by realizing affordability, pleasant communication quality, and multilingual support。
FOUR commitments of SEIKOU SIM
By using The Japanese major carrier line, we will provide stable communication speed and provide low-stress communication and phone call even in busy hours。
While maintaining a definite level of communication quality, we offer an affordable price plan。
The entire process from the application to get payment can be completed on the Internet. By using multilingual sites, we reduce the language barrier and provide an easy-to-understand interface for everyone。
To respond to anything that you don’t understand and any problems, we provide multilingual support. The contract entry screen is also multilingual, so that you can apply with relief。
SEIKOU SIM MENU PLAN
（All prices listed in this catalog are excluding tax.）
※All the above plans are docomo line.
※Each plan requires ¥3400 extra fee as issue fee.
※The call fee of ¥20 will be charged for every 30 seconds when making a call with the call SIM
Data charge: ¥1200 per 500 MB, and 3GB for maximum per a month.
Setup SMS in data-only SIM: Monthly ¥150
Free 10 minutes telephone call by the call SIM: Monthly ¥850
(※ If you exceed 10 minutes, there will be \10 call charge every 30 seconds)
Sharing Plan: Monthly ¥400 charges to each additional SIM cards. (3 cards for maximum)
Even if the SIM lock is not released, you can use the docomo line with this SIM card on the device purchased from docomo and with the model that can configure the APN settings.
The device using this SIM card needs support of docomo “PREMIUM 4G”, “Xi” or 3G network.
※”PREMIUM 4G” and “Xi” is a registered trademark of NTT docomo, INC.
docomo, au, Softbank or any carrier’s exclusive functions including carrier mail can not be used.
You cannot use the tethering function, if your device does not have this support.
Apply for MNP reservation (Only those who want to continue using the phone number)
If you use MNP (Mobile Number Portability), you can use the same phone number with “Seikou sim”. If you want to do so, apply for an MNP reservation to the mobile phone company you currently have a contract with. An “MNP reservation number” will be issued.
※Please keep in mind that the expiration date of the MNP reservation number is 15 days。
※The cancellation of the current mobile phone company is unnecessary. After completing the application for “Seikou Sim” and proceeding the procedure for the MNP, the current contracted mobile phone company will be canceled automatically.
※It is not cancelled only by applying MNP reservation.
Preparation of personal identification documents
The following documents are used as personal identification documents, so please prepare one of them.
● In the case of Japanese
②Individual number card (my number card)
③Basic resident register card
④Physically disabled person’s handbook
⑤Insurance card (National Health Insurance or Health Insurance)
● In the case of foreigners
①Special permanent resident certificate
②Residence card or alien registration certificate
& supporting documents
(utility fee receipt or resident certificate)
Please pay with your credit card issued in Japan.
2 . Select the service content
Select the payment plan。
Select the service content (SIM type)。
With call function
Select the option
10 minutes unlimited call
10 minutes unlimited call
Select “with/without SMS function”
Select a call option。
Unlimited calls 10 minutes (850 yen/month)
※There is only above option that you can choose now.
※Only for the people who selected voice-call available。
The application of MNP (Those who want to apply)
To use the current phone number, apply for the MNP (mobile number portability).
Procedure of personal identification
Upload the documents of your identity verification.
3 .Payment procedure
Enter your payment information.
4 . SIM card delivery
We will deliver the SIM card to the address that you registered.
It usually arrives in a few days.
5 . Change MNP (Those who applied)
Once you receive your SIM card,
proceed with the MNP switching procedure.
6 . Device setup
1 – Remove SIM card
Check the SIM card specified by your device and remove the SIM card from the pasteboard received according to the size of the SIM of the device.
2 – Set the SIM card to the device
Turn off your mobile device and insert the SIM card you removed in Step 1 into the device. The method of installation and changing the APN setting, follow the instruction manual of the device.
3 -Select and follow the APN setting according to the device you use.