Area Code +421-37-(6400000...6499999) located in Nitra, Nitriansky (NI), more detail is as below. Place International Dialing Code : 421 International Prefix : 00 National Prefix : 0 National Destination Code : 37 Subscriber Number From : 6400000 Subscriber Number To : 6499999 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 : NI Region Name : Nitriansky City : Nitra Timezone : Europe/Bratislava Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.3100 Longitude : 18.0900 ‹ previous : +421-37-(6300000...6399999) next › : +421-37-(6500000...6599999) Dialling Instructions For trunk calls: 0 37 6400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 37 6400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6400000 ~ 6499999 (Count: 100,000) Example: +421-37-6400000 / 00421-37-6400000 (037-6400000 / 0-37-6400000) +421-37-6400001 / 00421-37-6400001 (037-6400001 / 0-37-6400001) +421-37-6400002 / 00421-37-6400002 (037-6400002 / 0-37-6400002) +421-37-6400003 / 00421-37-6400003 (037-6400003 / 0-37-6400003) +421-37-6400004 / 00421-37-6400004 (037-6400004 / 0-37-6400004) ...+421-37-xxxxxxx / 00421-37-xxxxxxx (037-xxxxxxx / 0-37-xxxxxxx) ...+421-37-6499995 / 00421-37-6499995 (037-6499995 / 0-37-6499995) +421-37-6499996 / 00421-37-6499996 (037-6499996 / 0-37-6499996) +421-37-6499997 / 00421-37-6499997 (037-6499997 / 0-37-6499997) +421-37-6499998 / 00421-37-6499998 (037-6499998 / 0-37-6499998) +421-37-6499999 / 00421-37-6499999 (037-6499999 / 0-37-6499999)