Area Code +420-312-(544000...544999) 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 : 544000 Subscriber Number To : 544999 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-(538000...538999) next › : +420-312-(547000...547999) Dialling Instructions For trunk calls: - 312 544000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 312 544000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 544000 ~ 544999 (Count: 1,000) Example: +420-312-544000 / 00420-312-544000 (312-544000 / -312-544000) +420-312-544001 / 00420-312-544001 (312-544001 / -312-544001) +420-312-544002 / 00420-312-544002 (312-544002 / -312-544002) +420-312-544003 / 00420-312-544003 (312-544003 / -312-544003) +420-312-544004 / 00420-312-544004 (312-544004 / -312-544004) ...+420-312-xxxxxx / 00420-312-xxxxxx (312-xxxxxx / -312-xxxxxx) ...+420-312-544995 / 00420-312-544995 (312-544995 / -312-544995) +420-312-544996 / 00420-312-544996 (312-544996 / -312-544996) +420-312-544997 / 00420-312-544997 (312-544997 / -312-544997) +420-312-544998 / 00420-312-544998 (312-544998 / -312-544998) +420-312-544999 / 00420-312-544999 (312-544999 / -312-544999)