Area Code +420-583-(230000...242999) located in All locations, Olomoucky (OL), more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 583 Subscriber Number From : 230000 Subscriber Number To : 242999 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 : OL Region Name : Olomoucky City : All locations Timezone : Europe/Prague Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 49.5900 Longitude : 17.2500 ‹ previous : +420-583-(221000...225999) next › : +420-583-(245000...248999) Dialling Instructions For trunk calls: - 583 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 583 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 242999 (Count: 13,000) Example: +420-583-230000 / 00420-583-230000 (583-230000 / -583-230000) +420-583-230001 / 00420-583-230001 (583-230001 / -583-230001) +420-583-230002 / 00420-583-230002 (583-230002 / -583-230002) +420-583-230003 / 00420-583-230003 (583-230003 / -583-230003) +420-583-230004 / 00420-583-230004 (583-230004 / -583-230004) ...+420-583-xxxxxx / 00420-583-xxxxxx (583-xxxxxx / -583-xxxxxx) ...+420-583-242995 / 00420-583-242995 (583-242995 / -583-242995) +420-583-242996 / 00420-583-242996 (583-242996 / -583-242996) +420-583-242997 / 00420-583-242997 (583-242997 / -583-242997) +420-583-242998 / 00420-583-242998 (583-242998 / -583-242998) +420-583-242999 / 00420-583-242999 (583-242999 / -583-242999)