Area Code +33-173-(360000...369999) located in Guyancourt, YVELINES (78), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 173 Subscriber Number From : 360000 Subscriber Number To : 369999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : BOUYGUES TELECOM Click here to buy France Area Code Database Other Information Language Code : fr (French) Country Number : 250 (France) Country Code : FR (France) Region Code : 78 Region Name : YVELINES City : Guyancourt Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.7600 Longitude : 2.0800 ‹ previous : +33-173-(350000...359999) next › : +33-173-(370000...379999) Dialling Instructions For trunk calls: 0 173 360000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 173 360000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 360000 ~ 369999 (Count: 10,000) Example: +33-173-360000 / 0033-173-360000 (0173-360000 / 0-173-360000) +33-173-360001 / 0033-173-360001 (0173-360001 / 0-173-360001) +33-173-360002 / 0033-173-360002 (0173-360002 / 0-173-360002) +33-173-360003 / 0033-173-360003 (0173-360003 / 0-173-360003) +33-173-360004 / 0033-173-360004 (0173-360004 / 0-173-360004) ...+33-173-xxxxxx / 0033-173-xxxxxx (0173-xxxxxx / 0-173-xxxxxx) ...+33-173-369995 / 0033-173-369995 (0173-369995 / 0-173-369995) +33-173-369996 / 0033-173-369996 (0173-369996 / 0-173-369996) +33-173-369997 / 0033-173-369997 (0173-369997 / 0-173-369997) +33-173-369998 / 0033-173-369998 (0173-369998 / 0-173-369998) +33-173-369999 / 0033-173-369999 (0173-369999 / 0-173-369999)