I flew an AC A321 from YUL-YYZ and the flight no. was 420 with no "3" prefix. I'm curious too. Mike Gammon ----- Original Message ----- From: "Matthew Montano" <mmontano@direct.ca> To: <AIRLINE@LISTSERV.CUNY.EDU> Sent: Thursday, February 28, 2002 3:42 PM Subject: ACs 3xxx flight numbers > I still have an old question from a while back. > > AC used to use 3xxx flight numbers to indicate flights operated by CP > planes and crews. > > ... and for the most part, they still do. > > But it's not always consistent, and I'm wondering if there is a simple > explanation. > > I.e. > > YYZ-YUL - AC 402 0800-0911 - Airbus 321 > YYZ-YUL - AC3404 0900-1011 - Airbus 321 > > Clearly the 321 is not an old CP inheriteted bird. > > Anyone have any idea? > > Matthew