|First mentioned:||"Day 1: 11:00pm-12:00am"|
|Last mentioned:||"Day 5: 2:00am-3:00am"|
Frankfurt was a city in Germany.
When Teri Bauer overheard Nina Myers speaking on the phone in German, Nina lied that she was speaking to someone from the Frankfurt Division of CTU. This was one of several pieces of evidence that would compromise Nina Myers' escape plan, and would eventually lead to her murdering Teri. ("Day 1: 11:00pm-12:00am")