The german phone code 05741 represents Lübbecke, Westfalen in Nordrhein-Westfalen.
Note for calls from abroad: In addition to the German country code (+49 or 0049) you can omit the foregoing zero of the dialling code for Lübbecke, Westfalen. So you can dial +495741... and add the number of the phone line you want to reach.