Supported carriers include Alltel, T-Mobile and US Cellular. Enter your mobile phone number to access the service. You will get your own private pin code that you need to enter. Message & Data Rates May Apply.Credits can be purchased as a one-time transaction or billed as a monthly subscription. You can get 5 credits for $0.25 and 10 credits for $0.50 (except on Alltel and US Cellular). On all carriers listed above you get 20 credits for $1.00, 40 credits for $1.99, 60 credits for $2.99, 80 credits for $3.99, 100 credits for $4.99, 140 credits for $6.99, 200 credits for $9.99. US Cellular, One-Time purchase only: 400 credits for $19.99, 600 credits for $29.99. Message & Data Rates May Apply. The charges will appear on your wireless phone bill or be deducted from your prepaid balance. Text STOP to 91010 cancel. Text HELP to 91010 for help. For customer support or providing feedback, please call (866) 532-2055 or email support.us@zong.com. By proceeding, you confirm that you are the wireless account owner or have an authorization from the account holder to subscribe or do a transaction, and also agree to our Terms and Conditions Privacy Policy Frequently Asked Questions