STI Calling Cards

For more than six years, has been your one stop shop for all your STI calling card needs. STI calling cards are regarded as some of the finest in the industry. With great rates on domestic long distance and international calling cards, and a dedication to customer satisfaction, STI has been working hard to earn your trust.

STI calling cards are perfect for calling a variety of geographical locations. They provide service in such exotic locales as Yemen, Columbia, and India. STI is also well known as the first provider of pay-as-you-go cellular phone service.

Finding the Best STI Calling Plan for You offers a full range of STI calling cards. You can find domestic and international calling cards by STI at, as well as a variety of wireless phone refills. Every transaction made at is instant, allowing you to immediately access all account information such as your Personal Identification Number. This means you can begin making calls as soon as you have made your purchase.

Purchasing STI calling cards through carries with it a number of benefits. All transactions made on are made over secure internet channels, so you never have to worry about who may discover your credit card number. You also receive total customer support, including access to a 24-hour hotline to handle any questions you may have about your account. has made it its mission to ensure your complete satisfaction.