Area Code +421-900-(400000...400999) 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 : 400000 Subscriber Number To : 400999 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-(399000...399999) next › : +421-900-(404000...404999) Dialling Instructions For trunk calls: 0 900 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 900 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 400999 (Count: 1,000) Example: +421-900-400000 / 00421-900-400000 (0900-400000 / 0-900-400000) +421-900-400001 / 00421-900-400001 (0900-400001 / 0-900-400001) +421-900-400002 / 00421-900-400002 (0900-400002 / 0-900-400002) +421-900-400003 / 00421-900-400003 (0900-400003 / 0-900-400003) +421-900-400004 / 00421-900-400004 (0900-400004 / 0-900-400004) ...+421-900-xxxxxx / 00421-900-xxxxxx (0900-xxxxxx / 0-900-xxxxxx) ...+421-900-400995 / 00421-900-400995 (0900-400995 / 0-900-400995) +421-900-400996 / 00421-900-400996 (0900-400996 / 0-900-400996) +421-900-400997 / 00421-900-400997 (0900-400997 / 0-900-400997) +421-900-400998 / 00421-900-400998 (0900-400998 / 0-900-400998) +421-900-400999 / 00421-900-400999 (0900-400999 / 0-900-400999)