2. Order via our secure website.

3. Receive your PIN number via email, and start making calls instantly!

• We sell high-quality Guam Prepaid Calling Cards, with the best rates from the USA to Guam.

• We sell most major brand name Guam Prepaid Calling Cards from STS, AT&T, IDT, 9278 and other reputable suppliers.

• We are a true one-stop shop for all your quality Guam Prepaid Calling Card needs.

• Over the years, STS Corp. has maintained a high level of honesty, integrity and fair marketing practices that made us the  company of choice for an increasing number of loyal customers nationwide.

Guam Prepaid Calling Cards terms & Conditions:  

Almost all of our Guam Phone Cards have no connection fees (unless specified otherwise). By using STSprepaid.com to buy your favorite Guam Prepaid Calling Cards you agree to abide by our terms and conditions. To allow immediate delivery and instant availability, no Guam Prepaid Phone Cards will be mailed or shipped. All orders will be e-mailed or made available on the customer's history log. No request for physical Guam Prepaid Phone Cards delivery will be honored (wholesale orders excluded). You specifically understand that Guam Prepaid Calling Cards pins, once released, can not be returned, exchanged, refunded or, replaced. Guam Prepaid Phone Cards manufacturers have the right to change rates at any time without notice. Rate changes on Guam Prepaid Calling Cards, once applied, are immediate and will affect both the balance remaining on previously bought Guam Calling Cards and future purchased Guam Phone Cards. STSprepaid.com is not responsible for rate changes and will not offer credit, compensation and/or refund for any Guam Calling Cards that are affected by the same. Neither Guam Prepaid Calling Cards manufacturers, Guam Prepaid Phone Cards network providers nor STSprepaid.com make any warranty, expressed or implied, regarding the conditions or fitness of the services offered for any particular use or purpose. All Guam Prepaid Phone Cards are sold AS IS, WHERE IS. Guam Prepaid Calling Cards are not intended for emergency use. Calls made from payphones using Guam Calling Cards are subject to additional charge. Maintenance fees may apply to all Guam Phone Cards. Three minute rounding applies to all Guam Prepaid Calling Cards (unless stated otherwise). Communication fee and long calls fee may apply to all Guam Prepaid Phone Cards. Calls made using Guam Calling Cards and terminate to mobile phones may be billed at a higher rate. Application of surcharges and fees will result in reducing the total minutes delivered by Guam Calling Cards. Minute information is based on entire Guam Calling Card being used in ONE single call. Guam Phone Cards are not returnable or exchangeable and all sales are FINAL. STSprepaid.com offers different types of Calling Cards including Corporate Phone Cards, Business Prepaid Calling Cards, Promotional Phone Cards, Military Prepaid Phone Cards and, Students Prepaid Calling Cards. These specialty Calling Cards have helped thousands of our valued customers staying in touch with their loved ones, business associates and clients when they are on the move. Our College Prepaid Phone Cards also help college bound students to call home more often at a very competitive rate. STSprepaid.com also offers Guam Long Distance services for homes and business and when you are on the road. Unlike some of our competitors, STSprepaid offers Guam Phone Cards from a wide selection of reputable companies like STS, CTA, IDT, AT&T, MCI, 9278, STI, UTA, Union, Union Telecard, PTI, PT1, DSA, Sprint and others. We do the shopping for you and only offer the best of the breed so you do not have to go all over the web to find the best deals. Should you ever come across a good Guam Calling Card that you want us to carry, please Contact Us to suggest the same. STSprepaid.com is committed to offer the very best Guam Prepaid Calling Cards available in the market today.