Question 1

Do I need to fill out an application to purchase Nippon SIM?

Accepted Answer

No application is required.

Question 2

Is it possible to charge the SIM card (increase the amount of data)?

Accepted Answer

Cannot be charged.

Question 3

How long does the SIM card expire?

Accepted Answer

The expiration date printed on the SIM package is the last usage start date. Please be sure to start using it by this date. If you start using it until this date, you can use it with the expiration date stated on the package.

Question 4

How long is the SIM card used?

Accepted Answer

The available period is as follows.・ The product number is DHA-SIM-023 / 025/043/057/088: The usage start date (1st day) is the same day, and it can be used during the expiration date stated on the package.・ Other than the above: The usage start date is from midnight the next day, and it can be used during the expiration date stated on the package.

Question 5

Can I send a call or SMS with a prepaid data SIM card?

Accepted Answer

Calls and SMS transmissions are not available.

Question 6

Does Nippon SIM for Japan come with a phone number?

Accepted Answer

Nippon SIM for Japan is for data communication only. A phone number for voice calls is not included.

Question 7

Can I use SMS with Nippon SIM for Japan?

Accepted Answer

Nippon SIM for Japan is for data communication only. SMS cannot be used. It cannot be used for sending / receiving SMS, SMS authentication for apps, etc.

Question 8

Please tell me the area where the SIM card can be used.

Accepted Answer

The DoCoMo line Nippon SIM for Japan can be used in the NTT DoCoMo area throughout Japan. Please see the NTT DoCoMo website for details. 
  https://www.nttdocomo.co.jp/area/ Softbank line Nippon SIM for Japan It can be used in Softbank areas all over Japan. Please see the SoftBank website for details. https://www.softbank.jp/mobile/network/area/map/

Question 9

What bands (frequency bands) can be used with the SIM card?

Accepted Answer

The following bands are available.・ DoCoMo line:4G / LTE: Band1 (2.1GHz) / Band 3 (1.8GHz) / Band 19 (800MHz) / Band 21 (1.5GHz) / Band 28 (700MHz) / Band 42 (3.5GHz)3G / W-CDMA: Band 1 (2.1GHz) / Band 6 (800MHz) / 19 (800MHz)・ Softbank line:4G / LTE: Band1 (2.1GHz) / Band 3 (1.8GHz) / Band 8 (900MHz) / Band 41 (2.5GHz)3G: Band 1 (2.1GHz) / Band 8 (900MHz)

Question 10

Is tethering available?

Accepted Answer

You can use it unless it is stated in the package that it cannot be used. However, if you are using an app-free product, communication by tethering may not be subject to count-free due to system restrictions.

Question 11

What is APN?

Accepted Answer

APN (access point name) is a setting that allows the device to connect to the DHA mobile service.

Question 12

What is SIM Free (SIM unlock)?

Accepted Answer

SIM-free refers to devices whose communication is not locked by the carrier from which you purchased the product.Please follow the procedure from My docomo, My au, or My Softbank to unlock the SIM lock.NTT DoCoMo:  https://www.nttdocomo.co.jp/support/unlock_simcard/ au:  https://www.au.com/support/service/ mobile / procedure / simcard / unlock / Softbank:  https://www.softbank.jp/support/faq/view/25919 It can be canceled at each company's shop other than online. Please check each company's website for SIM unlock fees at the shop.

Question 13

What is a SIM-free terminal?

Accepted Answer

The terminal is not locked by the SIM card carrier. Since you can use any SIM card, you can freely select the SIM card to use from carriers (or cheap SIM, prepaid SIM) in Japan.To use communication with our SIM card, APN setting is required.

Question 14

What devices are available?

Question 15

I have a docomo smartphone. Can I use Nippon SIM for Japan without unlocking the SIM?

Accepted Answer

If you purchase a product with a SIM number that starts with AX / GD or DN, you can use your doCoMo smartphone without unlocking the SIM.Please check the product description in advance or contact customer support if you are unsure.

Question 16

Can I use it on my device (smartphone, tablet, router)?

Accepted Answer

(1) When using the following combinations, the device must be unlocked from the SIM lock.・ When using various Nippon SIMs with SoftBank / au terminals.･ When using a full MVNO line product with a doCoMo terminal.(2) Please check the supported frequencies of your device before using.Nippon SIM uses DoCoMo's network and supports the following frequencies.・ 4G / LTE: Band 1 (2.1GHz) / Band 3 (1.8GHz) / Band 19 (800MHz) / Band 21 (1.5GHz) / Band 28 (700MHz) / Band 42 (3.5GHz)・ 3G / W-CDMA: Band 1 (2100GHz) / Band 6 (800MHz) / Band19 (800MHz)Platinum band 4G / LTE: Band 19/28, 3G: Band 6 is supported, the easier it is to connect.* Only the product model number DHA-SIM-088 uses the SoftBank network, and the supported frequencies are 4G / LTE: Band 1 (2100GHz) / Band 3 (1800GHz) / Band 8 (900MHz) / Band 28 (700MHz) / Band 41 (2500GHz); 3G / W-CDMA: Band 1 (2100MHz) / Band 8 (900MHz).(3) APN setting is required when using. Click here for how to set the APN for each terminal. https://www.nipponsim.jp/ap For routers, it is necessary to add or edit the APN profile. For details, see the instruction manual of your device.

Question 17

What is eSIM?

Accepted Answer

eSIM is a "main unit integrated SIM" that has a built-in SIM inside the smartphone terminal. The difference from the physical SIM card is that you do not need to purchase the physical SIM card each time and it can be completed online, and there is no need to replace the physical SIM and there is less risk of damage to the SIM and equipment. 
 After purchase, simply scan the QR code and install the eSIM profile to use it.

Question 18

It is a terminal that does not support eSIM, but I bought eSIM by mistake.

Accepted Answer

Please contact us from the inquiry form to the effect that you purchased by mistake. We will replace it with an equivalent physical SIM. 
 Please note that  replacement shipping charges will be borne by the customer .

Question 19

I was looking at genuine KDDI products and noticed that there are tags “for use in Japan” and “for overseas residents only” on the thumbnails. Is it possible to use “for use in Japan”?

Accepted Answer

The product is “for use in Japan” and can be used in Japan.However, since the product is sold only to customers who live overseas and visit Japan, it is marked as “for overseas residents only”.

Earn JAL Mileage here

Overseas SIM/eSIM here

FAQ