Area Code +33-170-(550000...559999) located in Massy, ESSONNE (91), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 170 Subscriber Number From : 550000 Subscriber Number To : 559999 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 : SOCIETE FRANCAISE DU RADIOTELEPHONE Click here to buy France Area Code Database Other Information Language Code : fr (French) Country Number : 250 (France) Country Code : FR (France) Region Code : 91 Region Name : ESSONNE City : Massy Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.7300 Longitude : 2.2700 ‹ previous : +33-170-(540000...549999) next › : +33-170-(560000...569999) Dialling Instructions For trunk calls: 0 170 550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 170 550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 550000 ~ 559999 (Count: 10,000) Example: +33-170-550000 / 0033-170-550000 (0170-550000 / 0-170-550000) +33-170-550001 / 0033-170-550001 (0170-550001 / 0-170-550001) +33-170-550002 / 0033-170-550002 (0170-550002 / 0-170-550002) +33-170-550003 / 0033-170-550003 (0170-550003 / 0-170-550003) +33-170-550004 / 0033-170-550004 (0170-550004 / 0-170-550004) ...+33-170-xxxxxx / 0033-170-xxxxxx (0170-xxxxxx / 0-170-xxxxxx) ...+33-170-559995 / 0033-170-559995 (0170-559995 / 0-170-559995) +33-170-559996 / 0033-170-559996 (0170-559996 / 0-170-559996) +33-170-559997 / 0033-170-559997 (0170-559997 / 0-170-559997) +33-170-559998 / 0033-170-559998 (0170-559998 / 0-170-559998) +33-170-559999 / 0033-170-559999 (0170-559999 / 0-170-559999)