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+49-431-(54784000...54784999): Kiel, Schleswig-Holstein (SH) Read more about +49-431-(54784000...54784999)
+49-511-(79789000...79789999): Hannover, Niedersachsen (NI) Read more about +49-511-(79789000...79789999)
+49-521-(98994000...98994999): Bielefeld, Nordrhein-Westfalen (NW) Read more about +49-521-(98994000...98994999)
+49-621-(86184000...86184999): Mannheim, Baden-Württemberg (BW) Read more about +49-621-(86184000...86184999)
