Area Code +358-18-(6390...6399999999) located in Ahvenanmaa, more detail is as below. Place International Dialing Code : 358 International Prefix : 00 National Prefix : 0 National Destination Code : 18 Subscriber Number From : 6390 Subscriber Number To : 6399999999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 12 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : TeliaSonera Finland Oyj Click here to buy Finland Area Code Database Other Information Language Code : fi (Finnish) Country Number : 246 (Finland) Country Code : FI (Finland) Region Name : Ahvenanmaa Timezone : Europe/Helsinki Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 6 Latitude : 60.1800 Longitude : 19.9200 ‹ previous : +358-18-(6380...6389999999) next › : +358-18-(7300...7309999999) Dialling Instructions For trunk calls: 0 18 6390 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 358 18 6390 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6390 ~ 6399999999 (Count: 6,399,993,610) Example: +358-18-0000006390 / 00358-18-0000006390 (018-0000006390 / 0-18-0000006390) +358-18-0000006391 / 00358-18-0000006391 (018-0000006391 / 0-18-0000006391) +358-18-0000006392 / 00358-18-0000006392 (018-0000006392 / 0-18-0000006392) +358-18-0000006393 / 00358-18-0000006393 (018-0000006393 / 0-18-0000006393) +358-18-0000006394 / 00358-18-0000006394 (018-0000006394 / 0-18-0000006394) ...+358-18-xxxxxxxxxx / 00358-18-xxxxxxxxxx (018-xxxxxxxxxx / 0-18-xxxxxxxxxx) ...+358-18-6399999995 / 00358-18-6399999995 (018-6399999995 / 0-18-6399999995) +358-18-6399999996 / 00358-18-6399999996 (018-6399999996 / 0-18-6399999996) +358-18-6399999997 / 00358-18-6399999997 (018-6399999997 / 0-18-6399999997) +358-18-6399999998 / 00358-18-6399999998 (018-6399999998 / 0-18-6399999998) +358-18-6399999999 / 00358-18-6399999999 (018-6399999999 / 0-18-6399999999)