Area Code +421-55-(8550000...8559999) 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 : 8550000 Subscriber Number To : 8559999 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 : ACS spol. s r.o. 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-(7900000...7999999) next › : +421-56-(2020000...2029999) Dialling Instructions For trunk calls: 0 55 8550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 55 8550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8550000 ~ 8559999 (Count: 10,000) Example: +421-55-8550000 / 00421-55-8550000 (055-8550000 / 0-55-8550000) +421-55-8550001 / 00421-55-8550001 (055-8550001 / 0-55-8550001) +421-55-8550002 / 00421-55-8550002 (055-8550002 / 0-55-8550002) +421-55-8550003 / 00421-55-8550003 (055-8550003 / 0-55-8550003) +421-55-8550004 / 00421-55-8550004 (055-8550004 / 0-55-8550004) ...+421-55-xxxxxxx / 00421-55-xxxxxxx (055-xxxxxxx / 0-55-xxxxxxx) ...+421-55-8559995 / 00421-55-8559995 (055-8559995 / 0-55-8559995) +421-55-8559996 / 00421-55-8559996 (055-8559996 / 0-55-8559996) +421-55-8559997 / 00421-55-8559997 (055-8559997 / 0-55-8559997) +421-55-8559998 / 00421-55-8559998 (055-8559998 / 0-55-8559998) +421-55-8559999 / 00421-55-8559999 (055-8559999 / 0-55-8559999)