Due to high increased safety measures for COVID-19, delivery times for SIM card orders may be longer than expected. Thank you for kind understanding.

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Ultra Mobile SIM Card

Unlimited International Talk

75+ Unlimited International Destinations - Available on $19, $29, $34, $39, and $45 Plans

International Roaming

For detail, please go to https://www.ultramobile.com/international-roaming/

SIM Card Activation

There are three ways to activate your SIM card:
  1. Activate Online: Please go to www.ultramobile.com/activate and enter the 11-digit activation number located on the back of your SIM card. The online process will guide you through the rest of the steps. Please keep your 11 digit Activation Code available until your service has been fully activated.
  2. Activate by Phone: Just call Ultra Customer Service at 888-777-0446.
  3. Activate With a Text Message: To activate your SIM and get a new local phone number, text GOGO + your 5 digit zip code to 6700. (For example GOGO 90045, this is the zip code for Los Angeles). Please note that phone number transfer is not available in SMS activations.

Network Coverage

Ultra Mobile offers nationwide coverage including ultra-fast 4G LTE data. To see coverage in your area, enter your zip code on Ultra Mobile's website at Ultra Mobile. Once you have set your zip, you can also zoom out to view coverage in your area and nationwide as well as available nearby retail stores. Our retailers can give you personalized service and activate your phone instantly.


  • US Orders: through USPS First Class Package; estimated delivery is within 4-8 business days.
  • Canadian Orders: through Canada Post Standard Mail Service; estimated delivery is within 4-8 business days.

Return Policy

  • Original SIM card package must stay unopen
  • No usage of the SIM card
  • Customer must return the original SIM card with hardcopies of PO email and Shipping email within 14 days of order received
  • Customer is responsible for postage of returning the SIM card
  • Once the return has been confirmed, a credit will be applied to the original payment card that was used for purchase.


International items may be subject to customs processing and additional charges. As the buyer, you should be aware of possible:
  • Delays from customs inspection
  • Import duties and taxes which buyers must pay
Product Warranty
  • ComNet is a reseller of the Ultra Mobile US SIM card. If the product has physical damages upon arrival, we will exchange one for you. More detail in the above return policy.
  • We cannot guarantee the Ultra Mobile network service and the accuracy of the product information provided, such as rates, roaming rates and service charges. Ultra Mobile may change without prior notice to ComNet. It’s totally at Ultra Mobile’s discretion. For the most updated information or should there be any technical & billing question, please contact Ultra Mobile Customer Service.
  • Ultra Mobile Customer Service Hotline:
    • Customer Service is available via phone 24/7 by calling 888-777-0446.
    • If you are an Ultra Mobile customer, simply dial 611.
ComNet responsibility can only be limited to the net purchase price on the invoice