Aircraft using the same callsign - Embraer 100 in USA . . .

FlightAware General
1

FlightAware recorded as Icelandair in Nashville May 12, 2008.

Embraer 100 Phonem landing at Nashville May 12, 2008 (PS: Nice Photo).

FlightAware lots of aircraft using the same flight number?, wouldn’t want two of them in the same area at the same time???

2

We’re not sure why, but ICE is used by quite a few non-Iclandair flights. The ICEn1 series (ICE11, ICE21, ICE31, etc) is popular for flights by A10, F15, F16, and F18 aircraft while others use various ICE numbers for flights by GR3/4/7 and E50P aircraft.