posted by in Frankfurt forum
I think you cannot answer that question per se. It is rather a questio of you would like to use your mobile.
If you talk a lot to normal telephone numbers - look for a Germany-wide flat rate (such as Base or the like).
If you do not phone verymuch, but would like to remain contactable, go for a prepaid card such as BLAU. If oyu do not phone much, BLAU would also be an option (10 Cent per Minute is fairly OK). If you phone a lot abroad, howevger, you would need to go for a special card, depending on the countries you wish to talk to....
So - what is YOUR mobile phone behaviour? ;-)
Best regards from Wiesbaden