RATP
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The metro has nearly three hundred stations and sixteen lines numbered from 1 to 14 in Paris and its suburbs (zones 1 and 2). It operates every day from 5:30 a.m. to 1:15 a.m. (Sunday to Thursday) and 2:15 a.m. (Friday, Saturday and holiday eve). The bus network has sixty routes. Buses run Monday through Saturday from 5:30 a.m. to about 8:30 p.m. Nearly half of the lines operate on Sundays and holidays, and some operate between 8:30 p.m. and 12:30 a.m. The Noctilien is a network of forty-seven lines that operate from 12:30 a.m. to 5:30 a.m. throughout the Ile-de-France region. The RER is a vast rail network that serves a large part of the Ile-de-France (zones 1 to 5). It includes five lines: A, B, C, D and E. It runs every day from 4:45 am to 1:30 am. Three tramway lines in Paris. The Balabus is a special line that allows you to discover the city from east to west. The Bastille, the Marais, the Ile Saint-Louis, Notre-Dame, the Louvre, Orsay, the Invalides, the Eiffel Tower, the Champs-Elysées, etc. This bus runs from April to September, only on Sundays and public holidays from 1:30 pm to 8:30 pm from the Gare de Lyon, or from 12:30 pm to 8 pm from the Grande Arche de la Défense.