Noctilien

Noctilien is the night bus service in Paris and its agglomeration. It is managed by the Île-de-France Mobilités (formerly the STIF), the Île-de-France regional public transit authority, and operated by RATP (with 32 lines) and Transilien SNCF (with 20 lines).

It replaced the previous Noctambus service on the night of 20/21 September 2005, providing for a larger number of lines than before and claiming to be better adapted to night-time transport needs.

In place of the previous hub-and-spoke scheme where all buses terminated at and departed from the heart of Paris: Châtelet , Noctilien's new service includes buses operating between banlieues (communes surrounding Paris proper) as well as outbound lines running from Paris' four main railway stations: Gare de l'Est, Gare de Lyon, Gare Montparnasse and Gare Saint-Lazare. In addition, these four stations are also connected to each other by a regular night bus service.

All in all, Noctilien operates 52 bus lines, from the end of the rail network and day bus service (around 00:30) until their resumption early in the morning (around 05:30), over the whole of Paris and the Île-de-France region.

It is made up of:
 2 circular lines:  &  running between Paris' major train stations ;
 6 transversal lines: from  to  running between different suburbs of Paris via its center at Châtelet  ;
 21 radial lines (the other 2 digits lines, except N71) running between major Paris stations and more or less its near suburbs ;
 2 radial long distance lines:  &  (subcontracted by the RATP) running between Paris and its remote suburbs ;
 19 radial long distance lines (the other 3 digits lines, except N135) running between Paris and its remote suburbs (with often a partly motorway route) and managed by the Transilien SNCF ;
 2 ring lines in the suburbs:  by RATP &  by Transilien SNCF.

Like Transilien, the name "Noctilien" is formed by analogy with "Francilien" — the French demonym for residents of Île-de-France.

Noctilien lines

The time intervals indicated here may depend on the day of week -- service is reinforced on Friday and Saturday nights and on days that precede bank holidays.

  - Inner (clockwise) circle line from and to Gare de l'Est    via Gare de Lyon    → Gare Montparnasse   → Gare Saint-Lazare   . Every 14 minutes.
  - Outer (counterclockwise) circle line from and to Gare Montparnasse    via Gare de Lyon    → Gare de l'Est    → Gare Saint-Lazare   . Every 14 minutes.
  - Pont de Neuilly  ↔ Château de Vincennes . Every 30 minutes.
  - Pont de Sèvres  ↔ Romainville - Carnot. Every 45 minutes.
  - Mairie d'Issy  ↔ Bobigny - Pablo Picasso . Every 20 minutes.
  - Mairie de Saint-Ouen  ↔ La Croix de Berny . Every 30 minutes.
  - Asnières − Gennevilliers - Gabriel Péri  ↔ Villejuif - Louis Aragon . Every 30 minutes.
  - Pont de Levallois  ↔ Mairie de Montreuil . Every 22 minutes.
  - Châtelet   ↔ Longjumeau - Hôpital. Every 30 minutes.
  - Châtelet   ↔ Juvisy . Every 20 minutes.
  - Châtelet   ↔ Chelles-Gournay  . Every 30 minutes.
  - Châtelet   ↔ Sartrouville  . Every 30 minutes.
  - Gare de Lyon    ↔ Paris Orly Airport (South Terminal). Every 30 minutes.
  - Gare de Lyon    ↔ Boissy-Saint-Léger . Every 30 minutes.
  - Gare de Lyon    ↔ Villiers-sur-Marne  (via Vincennes & Nogent-sur-Marne). Every 30 minutes.
  - Gare de Lyon    ↔ Torcy . Every 30 minutes.
  - Gare de Lyon    ↔ Villiers-sur-Marne  (via Maisons-Alfort & Saint-Maur-des-Fossés). Every 30 minutes.
  - Gare de l'Est   ↔ Villeparisis – Mitry-le-Neuf . Every 30 minutes.
  - Gare de l'Est   ↔ Aulnay-sous-Bois - Garonor . Every 20 minutes.
  - Gare de l'Est   ↔ Gare de Sarcelles-Saint-Brice . Every 20 minutes.
  - Gare de l'Est   ↔ Garges-Sarcelles . Every 20 minutes.
  - Gare de l'Est   ↔ Montfermeil -  Hôpital. Every 30 minutes.
  - Gare Saint-Lazare     ↔ Gare d'Enghien . Every 30 minutes.
  - Gare Saint-Lazare     ↔ Gare de Cormeilles-en-Parisis . Every 30 minutes.
  - Gare Saint-Lazare     ↔ Nanterre - Anatole France. Every 30 minutes.
  - Gare Montparnasse   ↔ Clamart - Georges Pompidou. Every 30 minutes. 
  - Gare Montparnasse   ↔ Rungis International Market. Every 35 minutes.
  - Gare Montparnasse   ↔ École Polytechnique - Vauve. Every 30 minutes. 
  - Gare Montparnasse   ↔ Gare de Chaville-Rive-Droite . Every 30 minutes.
  - Rungis International Market ↔ Val de Fontenay . Every 26 minutes.
  - Châtelet   ↔ Saint-Rémy-lès-Chevreuse . Every 60 minutes.
  - Gare de Lyon    ↔ Marne-la-Vallée - Chessy  (Disneyland Paris). Every 60-80 minutes.
  - Gare de Lyon    ↔ Brétigny . Every 60 minutes.
  - Gare de Lyon    ↔ Melun  . Every 60 minutes.
  - Gare de Lyon    ↔ Juvisy . Every 60 minutes.
  - Gare de Lyon    ↔ Combs-la-Ville - Quincy . Every 60 minutes.
  - Boissy-Saint-Léger  ↔ Corbeil-Essonnes . Every 60-65 minutes.
 N137 - Gare de Lyon    ↔ Fontainebleau-Avon  (Montereau-Fault-Yonne  On week-ends)
 N138 - Gare de Lyon    ↔ Coulommiers . Every 60 minutes.
  - Gare de l'Est   ↔ Paris Charles de Gaulle (CDG) Airport  (All Terminals). Every 60 minutes.
  - Gare de l'Est   ↔ Gare de Meaux . Every 60 minutes.
  - Gare de l'Est   ↔ Tournan  . Every 60 minutes.
  - Gare de l'Est   ↔ Paris Charles de Gaulle (CDG) Airport  (Semi-direct link to all Terminals). Every 30 minutes.
  - Gare de Lyon    ↔ Corbeil-Essonnes . Every 60 minutes.
  - Gare Montparnasse   ↔ Gare de La Verrière  (Gare de Rambouillet  On week-end). Every 60 minutes.
 N146 - Gare de l'Est   ↔  Gare de Survilliers-Fosses . Every 60 minutes.
  - Gare Saint-Lazare    ↔ Cergy Le Haut  . Every 30 minutes.
  - Gare Saint-Lazare    ↔ Gare de Mantes-la-Jolie . Every 60 minutes.
  - Gare Saint-Lazare    ↔ Cergy Le Haut  . Every 60-70 minutes.
  - Gare Saint-Lazare    ↔ Saint Germain-en-Laye . Every 60 minutes.
  - Gare Saint-Lazare    ↔ Montigny – Beauchamp  . Every 70 minutes.
 N155 - Gare Saint-Lazare    ↔ Gare de Poissy  . Every 60 minutes.

Line numbering scheme

Each bus line number starts with  for Noctilien followed by a two or three digit number:

2 digits starting with "N0" for the two "circular" routes
2 digits starting with "N1" for the "transversal" routes
2 digits starting with "N2" for buses running from Châtelet  
2 digits starting with "N3" for buses running from Gare de Lyon   
2 digits starting with "N4" for buses running from Gare de l'Est  
2 digits starting with "N5" for buses running from Gare Saint-Lazare   
2 digits starting with "N6" for buses running from Gare Montparnasse    
3 digits starting with "N1" for the long distance buses running to the outer suburbs.

References

External links
Official website (old)
Routes, schedules (official website)

Transport in Île-de-France
RATP Group
Transport in Paris
Transport in Hauts-de-Seine
Night bus service
Bus transport in France