Area Code +33-170-(840000...849999) 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 : 840000 Subscriber Number To : 849999 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 : COLT TECHNOLOGY SERVICES 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-(830000...839999) next › : +33-170-(850000...859999) Dialling Instructions For trunk calls: 0 170 840000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 170 840000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 840000 ~ 849999 (Count: 10,000) Example: +33-170-840000 / 0033-170-840000 (0170-840000 / 0-170-840000) +33-170-840001 / 0033-170-840001 (0170-840001 / 0-170-840001) +33-170-840002 / 0033-170-840002 (0170-840002 / 0-170-840002) +33-170-840003 / 0033-170-840003 (0170-840003 / 0-170-840003) +33-170-840004 / 0033-170-840004 (0170-840004 / 0-170-840004) ...+33-170-xxxxxx / 0033-170-xxxxxx (0170-xxxxxx / 0-170-xxxxxx) ...+33-170-849995 / 0033-170-849995 (0170-849995 / 0-170-849995) +33-170-849996 / 0033-170-849996 (0170-849996 / 0-170-849996) +33-170-849997 / 0033-170-849997 (0170-849997 / 0-170-849997) +33-170-849998 / 0033-170-849998 (0170-849998 / 0-170-849998) +33-170-849999 / 0033-170-849999 (0170-849999 / 0-170-849999)