Area Code +421-55-(6300000...6399999) located in Košice, Košický (KI), more detail is as below. Place International Dialing Code : 421 International Prefix : 00 National Prefix : 0 National Destination Code : 55 Subscriber Number From : 6300000 Subscriber Number To : 6399999 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 : KI Region Name : Košický City : Košice Timezone : Europe/Bratislava Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.7200 Longitude : 21.2600 ‹ previous : +421-55-(6200000...6299999) next › : +421-55-(6400000...6499999) Dialling Instructions For trunk calls: 0 55 6300000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 55 6300000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6300000 ~ 6399999 (Count: 100,000) Example: +421-55-6300000 / 00421-55-6300000 (055-6300000 / 0-55-6300000) +421-55-6300001 / 00421-55-6300001 (055-6300001 / 0-55-6300001) +421-55-6300002 / 00421-55-6300002 (055-6300002 / 0-55-6300002) +421-55-6300003 / 00421-55-6300003 (055-6300003 / 0-55-6300003) +421-55-6300004 / 00421-55-6300004 (055-6300004 / 0-55-6300004) ...+421-55-xxxxxxx / 00421-55-xxxxxxx (055-xxxxxxx / 0-55-xxxxxxx) ...+421-55-6399995 / 00421-55-6399995 (055-6399995 / 0-55-6399995) +421-55-6399996 / 00421-55-6399996 (055-6399996 / 0-55-6399996) +421-55-6399997 / 00421-55-6399997 (055-6399997 / 0-55-6399997) +421-55-6399998 / 00421-55-6399998 (055-6399998 / 0-55-6399998) +421-55-6399999 / 00421-55-6399999 (055-6399999 / 0-55-6399999)