Mobile top up recharge is offered on cell phone service by some providers, including Sprint, T-Mobile and Verizon Wireless. Payments are made via mobile phone, computer, or at an authorized retailer. Telephone and computer payment procedures differ between carriers, so check the websites for details.
Mobile top up recharge cards are also available online at retail stores, including Best Buy and Walmart. Recharge cards available online include physical cards, which are mailed to the purchaser, and virtual cards, which are delivered via email.
Top up cards are also sold in some retailers. Confirm availability by clicking the Check Stores link, or similar link, on the product page of the store's website.