Japan Data SIM Instructions

+1 310 862-7100
Please be sure to read these instructions prior to departing for Japan.

If you experience any technical difficulties with your phone or SIM card and you do not contact Cellular Abroad for technical support by phone or by email during your trip, we cannot offer any refund or compensation.

Device Information

Your phone needs to be an unlocked dual-band, tri-band or quad-band GSM phone capable of functioning on the 900/1800 MHz GSM bands in order to accept the SIM card. 3G service is only available to phones carrying the 3G 2100 MHz frequency band. If you are unsure, check your phone manual or contact Cellular Abroad at 1-800-287-5072 or support@cellularabroad.com

WARNING: This SIM Card does not make or receive calls. It is a broadband data SIM Card for data sessions only.

Setting up your International Data SIM Card

Your SIM chip is in the envelope attached to these instructions.

  • Your Service has been registered by Cellular Abroad
  • Insert the SIM chip into your phone - typically the SIM bay is found underneath the battery on most standard GSM phones. iPhone and iPad users have SIM trays that slide out from the top/side. The metal portion of your SIM chip should be facing the gold metal contact prongs inside your phone.
  • Power on your device. If your screen displays an "Insert SIM" or "Invalid SIM" error, please make sure the SIM card is inserted correctly and securely.

Data Plan Setup

Typically there is no need for any setup. The SIM will automatically populate the APN in your device and grab the Softbank network. If you are given a network choice select Softbank. If you are unable to connect to the internet set your APN to 3gnet. Note: Our service testers report it takes a few minutes for the Softbank network to appear and the 3G symbol to populate.

Below are the data plan instructions for some current popular smart phones. If you are unable to set up data using these instructions, consult the user manual for your phone. You can also call Cellular Abroad at 1-800-287-5072 or if overseas at +1310 862 7100.

Android OS Phone Setup

  • Select Menu > Settings > Wireless & Networks > Mobile Networks
  • Leave Data Roaming unchecked
  • Select Access Point Names
  • In APNs screen, bring up the menu screen and select Add new or New APN
  • Set the following case-sensitive options:
    Name: Japan
    APN: 3gnet
    MMS proxy:
    MMS port:
    MCC: Do not edit this record
    MNC: Do not edit this record
    Authentication type: "None"
    APN type: Leave blank, or choose "Internet" if given a dropdown list
  • Tap the menu screen again and select "Save" or "Save APN"
  • Your new APN should appear in the list on the "APNs" screen
  • Do not activate this APN until you arrive in Italy to avoid expensive roaming fees.
  • To activate your data account, tap the dot next to the APN name to turn it green.
  • Once activated, you can start browsing.

iPhone, iPad and iOS Phone Setup

  • Select Settings > General > Network > Cellular Data Network OR
    Settings > Cellular Data > APN Settings for iPad
  • Set the APN to: 3gnet
  • Leave the username and password blank.
  • Once set, you do not need to save
  • Set your Data Roaming toggle OFF before arriving in Italy to ensure you do not use your credit on expensive roaming fees.
  • Set your Data Roaming toggle ON when you arrive in Italy
  • Start browsing.

Other Phone Model Setup

  • Most phones have similar Data Network or Connectivity settings menus. Below is a list of the most common settings:
    Name: Japan
    APN: 3gnet
    Bearer: GPRS
    Authentication type: "None"
    APN type: "Internet" or leave blank if no drop down menu option
  • If you are unsure about your settings, call our support hotline at +1-310-862-7100

To reach Cellular Abroad for recharges, billing or hardware support:

From a landline, (NOT from payphones, mobile phones, and majority of hotels) Cellular Abroad can be reached 8am to 4pm PST, Monday - Friday with English customer support and recharge services by dialing this number: 00-800-3623-3333. Please note that some hotels may charge for toll free calls. You may reach us from your cell phone at +1-310-862-7100 (not a toll free call) or via email at support@cellularabroad.com.

Service Life

Your data service is good for 30 days from the time it's activated and will then expire. Additional 30 day credit extensions are not available. For additional days of service you would need to purchase an additional SIM.

You will find a copy of these instructions on our website at /japandataSIMop.php.

Cellular Abroad is not responsible for typos, misinformation, change of service or menu prompts, lack of coverage or other possibilities that result in a lack of service or otherwise resulting in not being able to make or receive calls. We've tried to supply the most accurate information possible, but carrier rates, service plans and related information can change without notice. If you find any discrepancies between these instructions and your actual experience with the phone service or if you have useful additional information, we would appreciate any clarifications, suggestions or corrections. Please send your comments to comments@cellularabroad.com.

© 2014 Cellular Abroad
Last updated 22 Jan, 2013