SNCF Class BB 27300 the number carried on the locomotive is prefixed with the number 8, to denote the unit as belonging to the Île-de-France division of SNCF. The first locomotives entered service in 2006 on suburban trains from Paris Montparnasse railway station. Current deployment sees a total of 25 locomotives operating services from Paris-Montparnasse on trains to Dreux, Mantes-la-Jolie and Rambouillet. At Montparnasse they have displaced older SNCF Class BB 8500 and BB 25500 locomotives. A further 42 locomotives operate from Paris Saint-Lazare railway station on trains to Poissy, Mantes-la-Jolie, Pontoise, Gisors, and Ermont Eaubonne. At Saint-Lazare BB 8500 and BB 17000 locomotives
SNCF passengers on these flights to book railway services between Charles de Gaulle Airport in Roissy (near Paris) and Aix-en-Provence, Angers, Avignon, Bordeaux, Le Mans, Lille, Lyon Part-Dieu, Marseille, Montpellier, Nantes, Nîmes, Poitiers, Rennes, Strasbourg, Tours, and Valence with their airline. The IATA designator used by airlines in connection with these journeys is 2C. Continental Airlines discontinued its codeshare with SNCF on 15 August 2010. Since July 2013, the SNCF headquarters are located in the Parisian suburb of Saint-Denis at 2, place aux Étoiles, 93200 Saint Denis. The move, motivated by cutting operating costs by 10 million euros per year, is