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City Carrier Name:Guyancourt

This is the France City Carrier Name:Guyancourt Area Code Database page list. You can click the title to browse the detail information.
Region Code: 78
Region Name National Destination Code Sn from Sn to Number Type
Yvelines 1 73130000 73139999 G
Yvelines 1 76330000 76339999 G