-
• No registration, no bank account, no credit card required
• Data rollover up to 180 days
• Each recharge extends SIM validity
• Top-up your data at convenience stores in cash
• Rechargeable data plans:
-
-
• No registration, no bank account, no credit card required
• Data rollover up to 180 days
• Each recharge extends SIM validity
• Top-up your data at convenience stores in cash
• Rechargeable data plans:
-
TOP SIM 5GB - Rechargeable Prepaid Data SIM
Stay Connected Any Time with Rechargeable SIMs 📱
No registration or documents required.
Pay at any convenience store in Japan!
How to order and activate SIM
TOP SIM is a prepaid, rechargeable data SIM that can be easily topped up at any convenience store in Japan. Each top-up extends the SIM's validity—no contract, no registration needed. Just buy and use.
-
Order
Place your order online through our secure Shopify store. Choose the TOP SIM card that fits your needs—whether you're an end-user or a reseller. End-users can purchase individual SIM cards, while resellers can take advantage of our bulk purchase option (1 lot = 10 SIM cards). Simply select your preferred option and complete your purchase with ease.
-
Payment
We offer flexible payment options to suit your needs. Individuals can pay using a credit card or opt for cash on delivery. For companies, in addition to these options, we also provide a postpaid invoice option.
-
Shipment
Once your payment is confirmed, we will promptly process and ship your order to the specified address. We partner with reliable couriers to ensure your package arrives safely and on time.
SIM Activation Guide
-
STEP 1: Set your SIM card in your device
1. Switch OFF the power on your device.
2. Insert your SIM card into your device. For details on how to insert the SIM card, see the manual for your device.
3. Switch ON the power on your device after you have inserted your SIM card. -
-
STEP 2: Set up APN settings
-
STEP 3: Activate SIM
After setting the APN and restarting your device, install the TOP SIM app. Open the app and follow the on-screen instructions.
-
FAQ
Why there is no Internet?
Please check the following:
- Verify the APN settings (a network path for all cellular data connectivity) according to this manual: [iOS], [Android].
- Ensure that your mobile data is ON, airplane mode is OFF, and Wi-Fi is OFF.
- Reboot the device until you see the IIJ antenna pictogram.
- Devices with SIM lock or network usage restrictions imposed by other carriers may not be compatible. In such cases, you may need to request unlocking from the purchase source or carrier.
- For dual SIM devices, please check if you are using the correct SIM slot. Try switching and performing the APN settings for the other slot as well. Do not forget to reboot the device.
- Ensure that the preferred network type is set to anything other than “GSM only”
Why is my data speed slow?
Most likely, you have consumed your data allowance, causing your speed to decrease to 200 kbps. Please choose a new plan of your preference and recharge to regain a speedy connection.
If this is not the case, please check the following:
- Ensure that your APN settings are correctly configured according to this manual: [iOS], [Android].
- Verify that your mobile data is ON, airplane mode is OFF, and Wi-Fi is OFF.
- Reboot your device.
- Check if there are any network outages or maintenance activities in your area.
If the issue persists, please contact our customer service for further assistance.
Can I use tethering with this SIM?
Yes, we do not restrict data for tethering, but please check that your device allows tethering.
For iOS, you need to add the APN settings to the Personal Hotspot field.
How can I check my data daily usage?
Please refer to the Mobile Data Usage settings on your device.
Why is my initial 5GB valid for more than 30 days?
The initial 5GB of data is valid for a full 60 days if the APN settings and SIM activation are completed on the same day. Please note, if the APN settings and activation are done on different days, the validity period will be shorter.
Why does my device not recognize the SIM?
Your SIM may be defective. Please contact our customer service for support.
Can I use the same SIM card with different devices?
Yes, as long as the device you use is compatible with TOP SIM, you can interchange your devices using the same SIM.
Please do not forget to set up the APN and reboot the new device. For activation, you will need to either scan the barcode from the cardholder or, if you do not have it anymore, use the manual SIM ID (ICCID) input link instead. The SIM ID number is printed on your SIM card and starts with 898103.
Can I use TOP SIM in another country while roaming?
No, TOP SIM is only available for internet connection in Japan.
Is there a PIN code?
Yes, the PIN code is "0000". Usually, it is not required. However, entering the wrong PIN code multiple times will result in blocking your SIM. In that case, a PUK code will be necessary. Please contact our customer service for support.
I lost my SIM. Is it possible to reissue it?
No, it is not possible. Please purchase a new SIM from our store: https://shop.brastel.com/
Why can't I pay with the barcode at a convenience store?
Please check the following:
- Every Tuesday from 22:00 to 9:00, there is network maintenance during which it is not possible to download the barcode. Please perform the purchase at another time.
- The barcode scanner in the store may not read the barcode properly if the screen has scratches or a protective film.
- The barcode expires at midnight. Please download a new barcode from the TOP SIM app.
- Barcodes may not be displayed on some smartphone models, such as iPads and tablets. The following smartphone device environment is recommended for usage:
- OS: iOS 10.0 or later, Android 5.0 or later
- Browser: The latest version of Safari or Google Chrome
- Screen size: 4.0 inches to 6.7 inches
Can I recharge after the SIM expires?
It is possible to recharge the SIM only within 7 days after the expiration date, but you need to connect to Wi-Fi first.
Can my SIM be extended?
Yes, each recharge within the SIM's validity period can extend it. Any unused data from the previous period can be rolled over to the new period, but only for a maximum of 180 days.
My SIM has expired. Where can I purchase a new SIM?
You can order a new SIM from our Shopify page: shop.brastel.com. Simply add the desired quantity to your basket and proceed to checkout.
If you are purchasing more than 10 SIMs, please explore our reseller discount option: https://shop.brastel.com/pages/top-sim-reseller-program
Can I send an SMS or make a call with TOP SIM?
No, TOP SIM is a data-only SIM. It does not support SMS or voice services. To make and receive calls, you may subscribe to our My 050 Number service.
Do I need to cancel or return the TOP SIM when I return home?
There is no cancellation procedure. If you don’t recharge your TOP SIM and it expires, the service will automatically end. You do not need to return the SIM.
Interested in becoming a TOP SIM reseller?
Click the button below to discover the benefits and advantages of joining our reseller network!
Enjoy VoIP calls with "My 050" app
TOP SIM is a data-only SIM. For voice connectivity, explore our My 050 app!
With the My 050 app, you can make affordable calls within Japan and internationally. You can also apply for your own 050 number, allowing you to receive incoming calls directly in the app, along with a range of other benefits.