Alitalia CRJ900s are operated by Alitalia under the Alitalia CityLiner subsidiary. Alitalia CityLiner was previously Air One CityLiner, until Air One merged with Alitalia in 2009. Alitalia is decreasing it's fleet of Bombardier CRJ900 s and replacing them with the Embraer E175 and E190.
Alitalia Bombardier CRJ900 jets have 90 seats in an economy class configuration. Below is the seat map for the Alitala CRJ900.
An Alitalia CRJ900 is also called the Alitalia CRJ9, Alitalia CR9, Alitalia CL-600-2D24, Alitalia Canadair CL-600-2D24, Alitalia CRJ 900 or the Alitalia Canadair Regional Jet 900 due to the various names for the CRJ900 regional jet.