Area Code +421-57-(7700000...7799999) located in Humenné, Prešovský (PV), more detail is as below. Place International Dialing Code : 421 International Prefix : 00 National Prefix : 0 National Destination Code : 57 Subscriber Number From : 7700000 Subscriber Number To : 7799999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Slovak Telekom Click here to buy Slovakia Area Code Database Other Information Language Code : sk (Slovak) Country Number : 703 (Slovakia) Country Code : SK (Slovakia) Region Code : PV Region Name : Prešovský City : Humenné Timezone : Europe/Bratislava Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.9300 Longitude : 21.9100 ‹ previous : +421-57-(7600000...7699999) next › : +421-57-(7800000...7899999) Dialling Instructions For trunk calls: 0 57 7700000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 57 7700000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7700000 ~ 7799999 (Count: 100,000) Example: +421-57-7700000 / 00421-57-7700000 (057-7700000 / 0-57-7700000) +421-57-7700001 / 00421-57-7700001 (057-7700001 / 0-57-7700001) +421-57-7700002 / 00421-57-7700002 (057-7700002 / 0-57-7700002) +421-57-7700003 / 00421-57-7700003 (057-7700003 / 0-57-7700003) +421-57-7700004 / 00421-57-7700004 (057-7700004 / 0-57-7700004) ...+421-57-xxxxxxx / 00421-57-xxxxxxx (057-xxxxxxx / 0-57-xxxxxxx) ...+421-57-7799995 / 00421-57-7799995 (057-7799995 / 0-57-7799995) +421-57-7799996 / 00421-57-7799996 (057-7799996 / 0-57-7799996) +421-57-7799997 / 00421-57-7799997 (057-7799997 / 0-57-7799997) +421-57-7799998 / 00421-57-7799998 (057-7799998 / 0-57-7799998) +421-57-7799999 / 00421-57-7799999 (057-7799999 / 0-57-7799999)