The area code (phone code) 07042 is assigned to 5 locations in Germany. Mainly you reach landlines in Vaihingen an der Enz (Baden-Württemberg).
|07042||Vaihingen an der Enz|
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 Vaihingen an der Enz. So you can dial +497042... and add the number of the phone line you want to reach.