Area Code +421-55-(5500000...5509999) 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 : 5500000 Subscriber Number To : 5509999 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-(4800000...4899999) next › : +421-55-(5900000...5999999) Dialling Instructions For trunk calls: 0 55 5500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 55 5500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5500000 ~ 5509999 (Count: 10,000) Example: +421-55-5500000 / 00421-55-5500000 (055-5500000 / 0-55-5500000) +421-55-5500001 / 00421-55-5500001 (055-5500001 / 0-55-5500001) +421-55-5500002 / 00421-55-5500002 (055-5500002 / 0-55-5500002) +421-55-5500003 / 00421-55-5500003 (055-5500003 / 0-55-5500003) +421-55-5500004 / 00421-55-5500004 (055-5500004 / 0-55-5500004) ...+421-55-xxxxxxx / 00421-55-xxxxxxx (055-xxxxxxx / 0-55-xxxxxxx) ...+421-55-5509995 / 00421-55-5509995 (055-5509995 / 0-55-5509995) +421-55-5509996 / 00421-55-5509996 (055-5509996 / 0-55-5509996) +421-55-5509997 / 00421-55-5509997 (055-5509997 / 0-55-5509997) +421-55-5509998 / 00421-55-5509998 (055-5509998 / 0-55-5509998) +421-55-5509999 / 00421-55-5509999 (055-5509999 / 0-55-5509999)