The CDMAS 3G shutdown and the GSMT transition -- what's next

Why did I receive an activation email?

If you have been alerted to an adjustment in your CDMAS account or you’ve received an email about your activated GSMT SIM card, keep reading to learn more about the 3G shutdown, your phone line, and what to do next. 

All three major US carriers begin shutting down their 3G networks this year. The Sprint network shutdown began on March 31, 2022, for CDMAS (3G) causing certain devices to lose network access, and finalized shutting down (for 3G) on May 31, 2022. In light of this shutdown, Red Pocket has taken action in order to protect your phone number otherwise your number could have been lost. 

To avoid this, your line was automatically transferred to our GSMT network and you’ve been placed on our starter plan, the unlimited talk, unlimited text, and 1GB high-speed data plan for $10.00 per month. 

This line will not renew automatically in 30 days. You will not incur a renewal charge for this plan unless you log in and submit payment. Make changes to your account or enable/disable auto-pay at any time. 


What should I do next?

You need to get a GSMT SIM card to go with your new plan. Your current CDMAS SIM card may no longer work. Log into your account at Click on your affected CDMAS line and you will see an alert that will help you request a SIM card replacement. 

Please allow 5 to 6 business days for the GSMT SIM card replacement to arrive in the mail, after you submit your request. When you receive it, do not activate it. Instead, update your account with your new SIM card number.

Finally, complete setup by following the instructions in your SIM kit or by going to


If you want to go back to CDMAS

We strongly encourage all CDMAS customers to move forward to a surviving wireless network. The GSMT network offers comparable coverage with unlimited talk, unlimited text, and unlimited data plans, for every budget. Please login to your online account, click on your line and then click on PLANS to see what’s available. 

Devices with VoLTE capability may continue with the CDMAS network until June 30, 2022. After June 30, 2022, even VoLTE-capable CDMAS devices will no longer work as the network is being completely decommissioned. Contact our customer support team for help with moving back over. 

Please note! Some phones are LTE but not VoLTE-capable. Click here to learn more about VoLTE functionality. If your phone is LTE compatible but not VoLTE-capable, your device will receive text and data but calls will not work on the CDMAS network. After May 31, 2022, VoLTE is required for calling.  


To continue with the $10 GSMT plan

Request your SIM card replacement, update your account with your new SIM card number, and complete APN network configuration steps to set up your new SIM card with your phone. Once that’s finished, you’re done! Red Pocket Mobile completed the network transition for you. Continue using your service with your phone number. 


If you want a different GSMT plan 

If you’re not satisfied with your current plan, you can change it. Login at, select your line, and click on “Plans”. Choose a new plane to switch to. You must still request a GSMT SIM replacement as your current CDMAS SIM will no longer work.


If you do not want GSMT and prefer a different network

Consider switching to a new network. Visit and choose the network and plan that works for you. 

Unfortunately, the CDMAS network is being decommissioned by the underlying carrier. Therefore, you will not be able to return to the CDMAS network with a 3G-only device. VoLTE-capable phones can return to the CDMAS network for a limited time (until June 30, 2022). 

The GSMT network offers comparable coverage with fast (5G) speeds. Our GSMA and CDMA-V networks are a great choice as well, with GSMA offering the largest, most widespread network coverage in the country and CDMA-V offering fast, reliable service. 

Please visit to see about different network options. 

Please visit to see about different plan options. You can change your plan at any time by logging in to your online account. 

Finally, if you have any questions about your plan, your network, or your service, we are here to help. Please visit to get in touch with us by phone, email, or live chat.