One World Communications  
   Save 20 - 80% on international calls.
   http://www.owcusa.com/

MCI WorldCom  
   Pre-paid calling cards calls outside of the U.S. from more than 130 countries and places worldwide.
   http://phonecards.mciworld.com/

Thaitel  
   Affiliate program offer calling cards for calls to Thailand.
   http://www.thaitel.com/index.html

Western Express  
   Offers affiliate program selling cards, calls and recruiting other dealers.
   http://www.call-store.com

Telco Global Communications  
   UK-based provider of international and domestic long distance telecommunications services, calling cards and prepaid cards.
   http://www.telco.co.uk/

AloSmart  
   Provides prepaid calling cards. Includes a card list, a rate finder, and the conditions of use.
   http://www.alosmart.com/

Mainstream  
   Telecommunication services based in the United Kingdom; including the universally recognized 0800 freephone numbers. Calling card & top up cards, access numbers, local, national & mobile phone numbers.
   http://www.mainstream.uk.net

AmeriCom  
   A national independent reseller of the domestic and international long distance services of major U.S. carriers. Offering dial 1, 800, calling card, international and international callback services.
   https://www.americom.com/

Globalone  
   Offers a single source for the provision of seamless voice, data and IP services for businesses, carriers and consumers around the world.
   http://www.globalone.ch