Hottest FAQ

    • ANA SIM cards use the T-Mobile/AT&T network, and have 97% coverage in the United States, but depending on the location of the mobile connection, the network will be connected 3G, 4G or LTE. (1 day/500MB high-speed data connection, then the speed drops to 384K.)
    • ANA SIM cards are only available for unlimited data in the United States. Telephone calls from the U.S. to international countries (including Japan) are not permitted. However, it is possible to make calls using LINE, Skype, Messenger, etc. that use data communication.
    • The SIM service can be paid using various credit cards & Paypal.
    • This service can be used for a set number of days, so if you purchase a 7-days plan, even if you do not use the service on the 5th day, the service will be completed at the end of the 7th day period.
    • SIM unlock procedure is available from each carrier's web site if there is internet connection in the U.S. To learn how to do this, see the SIM Unlock Methods page at: https://ana.nxtsim.com/unlock/
    • Several reasons could be the cause of this. The primary reason is that the carrier does not allow unlocking the device. If a mobile phone is purchased with monthly payments of a carrier, if 100 days have not passed since the purchase, the mobile phone will not be able to to be unlocked. In that case, we can only give up on using our SIM card, so please connect to the Internet in a different way.
    • Unfortunately, if you lose your SIM card, the service will be unavailable. Please acquire a new SIM card and set up new activation.
    • Contact the contact below.

      Email: info@skygosim.com

      Support Hours:
      10AM to 6PM (PST)
    • This SIM card service does not grant mileage.
    • Yes, the data service is unlimited during the SIM activation period. (1 day/500MB high-speed data connection, then the speed drops to 384K.)
    • Yes, if your smartphone supports hotspot (tethering) function, you can enable the network sharing function to share the network with other mobile phones and PCs.