I was looking for some prepaid phone cards to give as a gift and found these:
Link
If you make long single calls, then the way to go is to buy the $5 cards but you have to talk a minimum of 14.63 minutes to beat out the $0.06 / minute card with no surcharge. Bottom line for the $5 card for a single phone call is $0.0216 / minute assuming you use all the minutes up.
Be sure you understand the terms and conditions before buying one because you could cost yourself a bit of money by not doing so. Specifically, read the bit on what states these are valid for.
Edit - Fixed the links. Terms and Conditions
Link
If you make long single calls, then the way to go is to buy the $5 cards but you have to talk a minimum of 14.63 minutes to beat out the $0.06 / minute card with no surcharge. Bottom line for the $5 card for a single phone call is $0.0216 / minute assuming you use all the minutes up.
Be sure you understand the terms and conditions before buying one because you could cost yourself a bit of money by not doing so. Specifically, read the bit on what states these are valid for.
Edit - Fixed the links. Terms and Conditions