Area Code +420-257-(210000...225999) located in All locations, Prague (PR), more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 257 Subscriber Number From : 210000 Subscriber Number To : 225999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Telefónica Czech Republic, a.s. Click here to buy Czech Republic Area Code Database Other Information Language Code : cs (Czech) Country Number : 203 (Czech Republic) Country Code : CZ (Czech Republic) Region Code : PR Region Name : Prague City : All locations Timezone : Europe/Prague Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 50.0900 Longitude : 14.4200 ‹ previous : +420-257-(170000...199999) next › : +420-257-(250000...258999) Dialling Instructions For trunk calls: - 257 210000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 257 210000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 210000 ~ 225999 (Count: 16,000) Example: +420-257-210000 / 00420-257-210000 (257-210000 / -257-210000) +420-257-210001 / 00420-257-210001 (257-210001 / -257-210001) +420-257-210002 / 00420-257-210002 (257-210002 / -257-210002) +420-257-210003 / 00420-257-210003 (257-210003 / -257-210003) +420-257-210004 / 00420-257-210004 (257-210004 / -257-210004) ...+420-257-xxxxxx / 00420-257-xxxxxx (257-xxxxxx / -257-xxxxxx) ...+420-257-225995 / 00420-257-225995 (257-225995 / -257-225995) +420-257-225996 / 00420-257-225996 (257-225996 / -257-225996) +420-257-225997 / 00420-257-225997 (257-225997 / -257-225997) +420-257-225998 / 00420-257-225998 (257-225998 / -257-225998) +420-257-225999 / 00420-257-225999 (257-225999 / -257-225999)