Area Code +421-57-(3100000...3199999) 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 : 3100000 Subscriber Number To : 3199999 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 : SWAN 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-(3000000...3099999) next › : +421-57-(3200000...3299999) Dialling Instructions For trunk calls: 0 57 3100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 57 3100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3100000 ~ 3199999 (Count: 100,000) Example: +421-57-3100000 / 00421-57-3100000 (057-3100000 / 0-57-3100000) +421-57-3100001 / 00421-57-3100001 (057-3100001 / 0-57-3100001) +421-57-3100002 / 00421-57-3100002 (057-3100002 / 0-57-3100002) +421-57-3100003 / 00421-57-3100003 (057-3100003 / 0-57-3100003) +421-57-3100004 / 00421-57-3100004 (057-3100004 / 0-57-3100004) ...+421-57-xxxxxxx / 00421-57-xxxxxxx (057-xxxxxxx / 0-57-xxxxxxx) ...+421-57-3199995 / 00421-57-3199995 (057-3199995 / 0-57-3199995) +421-57-3199996 / 00421-57-3199996 (057-3199996 / 0-57-3199996) +421-57-3199997 / 00421-57-3199997 (057-3199997 / 0-57-3199997) +421-57-3199998 / 00421-57-3199998 (057-3199998 / 0-57-3199998) +421-57-3199999 / 00421-57-3199999 (057-3199999 / 0-57-3199999)