Area Code +420-310-(310000...310999) located in All locations, Stredocesky (ST), more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 310 Subscriber Number From : 310000 Subscriber Number To : 310999 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 : CANISTEC s.r.o. 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 : +420-299-(999000...999999) next › : +420-310-(311000...311999) Dialling Instructions For trunk calls: - 310 310000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 310 310000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 310000 ~ 310999 (Count: 1,000) Example: +420-310-310000 / 00420-310-310000 (310-310000 / -310-310000) +420-310-310001 / 00420-310-310001 (310-310001 / -310-310001) +420-310-310002 / 00420-310-310002 (310-310002 / -310-310002) +420-310-310003 / 00420-310-310003 (310-310003 / -310-310003) +420-310-310004 / 00420-310-310004 (310-310004 / -310-310004) ...+420-310-xxxxxx / 00420-310-xxxxxx (310-xxxxxx / -310-xxxxxx) ...+420-310-310995 / 00420-310-310995 (310-310995 / -310-310995) +420-310-310996 / 00420-310-310996 (310-310996 / -310-310996) +420-310-310997 / 00420-310-310997 (310-310997 / -310-310997) +420-310-310998 / 00420-310-310998 (310-310998 / -310-310998) +420-310-310999 / 00420-310-310999 (310-310999 / -310-310999)