Area Code +421-850-(666000...666999) located in Shared cost services, more detail is as below. Place International Dialing Code : 421 International Prefix : 00 National Prefix : 0 National Destination Code : 850 Subscriber Number From : 666000 Subscriber Number To : 666999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : S (Special) Carrier Name : GTS Slovakia Click here to buy Slovakia Area Code Database Other Information Language Code : sk (Slovak) Country Number : 703 (Slovakia) Country Code : SK (Slovakia) City : Shared cost 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 : +421-850-(646000...646999) next › : +421-850-(700000...700999) Dialling Instructions For trunk calls: 0 850 666000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 421 850 666000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 666000 ~ 666999 (Count: 1,000) Example: +421-850-666000 / 00421-850-666000 (0850-666000 / 0-850-666000) +421-850-666001 / 00421-850-666001 (0850-666001 / 0-850-666001) +421-850-666002 / 00421-850-666002 (0850-666002 / 0-850-666002) +421-850-666003 / 00421-850-666003 (0850-666003 / 0-850-666003) +421-850-666004 / 00421-850-666004 (0850-666004 / 0-850-666004) ...+421-850-xxxxxx / 00421-850-xxxxxx (0850-xxxxxx / 0-850-xxxxxx) ...+421-850-666995 / 00421-850-666995 (0850-666995 / 0-850-666995) +421-850-666996 / 00421-850-666996 (0850-666996 / 0-850-666996) +421-850-666997 / 00421-850-666997 (0850-666997 / 0-850-666997) +421-850-666998 / 00421-850-666998 (0850-666998 / 0-850-666998) +421-850-666999 / 00421-850-666999 (0850-666999 / 0-850-666999)