173 is this the legal department?

What you want to ask is whether the phone number starting with 173 is the legal department? breakdown

173 didn't start with the court phone. At present, there are many Unicom king cards that also start with 173. The phone number of the court summons is fixed. It is impossible to make a phone call with a mobile phone number, but all calls are made by the court's fixed telephone.

Legal affairs refer to the staff responsible for handling legal affairs in enterprises, institutions, government departments and other legal persons and unincorporated organizations.