Area Code +420-511-(170000...179999) located in All locations, Jihomoravsky (JM), more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 511 Subscriber Number From : 170000 Subscriber Number To : 179999 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 : RIO Media 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 : JM Region Name : Jihomoravsky City : All locations Timezone : Europe/Prague Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 49.1900 Longitude : 16.6500 ‹ previous : +420-511-(160000...169999) next › : +420-511-(180000...189999) Dialling Instructions For trunk calls: - 511 170000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 511 170000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 170000 ~ 179999 (Count: 10,000) Example: +420-511-170000 / 00420-511-170000 (511-170000 / -511-170000) +420-511-170001 / 00420-511-170001 (511-170001 / -511-170001) +420-511-170002 / 00420-511-170002 (511-170002 / -511-170002) +420-511-170003 / 00420-511-170003 (511-170003 / -511-170003) +420-511-170004 / 00420-511-170004 (511-170004 / -511-170004) ...+420-511-xxxxxx / 00420-511-xxxxxx (511-xxxxxx / -511-xxxxxx) ...+420-511-179995 / 00420-511-179995 (511-179995 / -511-179995) +420-511-179996 / 00420-511-179996 (511-179996 / -511-179996) +420-511-179997 / 00420-511-179997 (511-179997 / -511-179997) +420-511-179998 / 00420-511-179998 (511-179998 / -511-179998) +420-511-179999 / 00420-511-179999 (511-179999 / -511-179999)