Area Code +420-312-(240000...250999) located in All locations, Stredocesky (ST), more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 312 Subscriber Number From : 240000 Subscriber Number To : 250999 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 : ST Region Name : Stredocesky City : All locations Timezone : Europe/Prague Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 49.8800 Longitude : 14.9400 ‹ previous : +420-312-(202000...202999) next › : +420-312-(253000...253999) Dialling Instructions For trunk calls: - 312 240000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 312 240000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 240000 ~ 250999 (Count: 11,000) Example: +420-312-240000 / 00420-312-240000 (312-240000 / -312-240000) +420-312-240001 / 00420-312-240001 (312-240001 / -312-240001) +420-312-240002 / 00420-312-240002 (312-240002 / -312-240002) +420-312-240003 / 00420-312-240003 (312-240003 / -312-240003) +420-312-240004 / 00420-312-240004 (312-240004 / -312-240004) ...+420-312-xxxxxx / 00420-312-xxxxxx (312-xxxxxx / -312-xxxxxx) ...+420-312-250995 / 00420-312-250995 (312-250995 / -312-250995) +420-312-250996 / 00420-312-250996 (312-250996 / -312-250996) +420-312-250997 / 00420-312-250997 (312-250997 / -312-250997) +420-312-250998 / 00420-312-250998 (312-250998 / -312-250998) +420-312-250999 / 00420-312-250999 (312-250999 / -312-250999)