The Federal Elections Act contains detailed provisions concerning the procedure followed for Bundestag elections, in particular regarding the electoral system, the electoral bodies, franchise and eligibility to stand for parliament, the poll and the establishment of the election result.
Here you can find a list containing the constituencies with their current names and numbers, ordered by the Bundesländer.
List of Constituencies (XLS, 39 KB) - only available in German
The Description of Constituencies (Annex to Section 2 Subsection 2 BWG) contains the boundaries and descriptions of the constituencies for the elections to the Bundestag, last amended by the Eighteenth Law amending the BWG of 12 April 2012 (Federal Law Gazette I, p. 518) and by the Announcement concerning the Description of Constituencies for the Election to the German Bundestag of 25 November 2011 (Federal Law Gazette I, p. 2313).
More information including the relevant documents in German is available on our website concerning the description of constituencies.