Area Code +420-311-(370000...370999) located in All locations, Stredocesky (ST), more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 311 Subscriber Number From : 370000 Subscriber Number To : 370999 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 : MAXPROGRES, 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 : +420-311-(360000...369999) next › : +420-311-(403000...409999) Dialling Instructions For trunk calls: - 311 370000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 311 370000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 370000 ~ 370999 (Count: 1,000) Example: +420-311-370000 / 00420-311-370000 (311-370000 / -311-370000) +420-311-370001 / 00420-311-370001 (311-370001 / -311-370001) +420-311-370002 / 00420-311-370002 (311-370002 / -311-370002) +420-311-370003 / 00420-311-370003 (311-370003 / -311-370003) +420-311-370004 / 00420-311-370004 (311-370004 / -311-370004) ...+420-311-xxxxxx / 00420-311-xxxxxx (311-xxxxxx / -311-xxxxxx) ...+420-311-370995 / 00420-311-370995 (311-370995 / -311-370995) +420-311-370996 / 00420-311-370996 (311-370996 / -311-370996) +420-311-370997 / 00420-311-370997 (311-370997 / -311-370997) +420-311-370998 / 00420-311-370998 (311-370998 / -311-370998) +420-311-370999 / 00420-311-370999 (311-370999 / -311-370999)