Area Code +421-900-(550000...550999) located in Premium rate services, more detail is as below. Place International Dialing Code : 421 International Prefix : 00 National Prefix : 0 National Destination Code : 900 Subscriber Number From : 550000 Subscriber Number To : 550999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : S (Special) Carrier Name : Slovanet Click here to buy Slovakia Area Code Database Other Information Language Code : sk (Slovak) Country Number : 703 (Slovakia) Country Code : SK (Slovakia) City : Premium rate services Timezone : Europe/Bratislava Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.1500 Longitude : 17.1100 ‹ previous : +421-900-(535000...535999) next › : +421-900-(555000...555999) Dialling Instructions For trunk calls: 0 900 550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 900 550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 550000 ~ 550999 (Count: 1,000) Example: +421-900-550000 / 00421-900-550000 (0900-550000 / 0-900-550000) +421-900-550001 / 00421-900-550001 (0900-550001 / 0-900-550001) +421-900-550002 / 00421-900-550002 (0900-550002 / 0-900-550002) +421-900-550003 / 00421-900-550003 (0900-550003 / 0-900-550003) +421-900-550004 / 00421-900-550004 (0900-550004 / 0-900-550004) ...+421-900-xxxxxx / 00421-900-xxxxxx (0900-xxxxxx / 0-900-xxxxxx) ...+421-900-550995 / 00421-900-550995 (0900-550995 / 0-900-550995) +421-900-550996 / 00421-900-550996 (0900-550996 / 0-900-550996) +421-900-550997 / 00421-900-550997 (0900-550997 / 0-900-550997) +421-900-550998 / 00421-900-550998 (0900-550998 / 0-900-550998) +421-900-550999 / 00421-900-550999 (0900-550999 / 0-900-550999)