A service of the City and Departement of Paris, France. They are based at 18 boulevard Sérurier, in the 19th arrondisement, with an annex at Villemoisson-sur-Orge. The closest Metro station is Porte des Lilas.
Many of the records of Paris were lost during the fires initiated during the Paris Commune in May 1871.
The French Wikipedia page is [1].
The website is [2].