Area Code +420-251-(510000...513999) located in All locations, Prague (PR), more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 251 Subscriber Number From : 510000 Subscriber Number To : 513999 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 : PR Region Name : Prague City : All locations Timezone : Europe/Prague Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 50.0900 Longitude : 14.4200 ‹ previous : +420-251-(450000...459999) next › : +420-251-(550000...556999) Dialling Instructions For trunk calls: - 251 510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 251 510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 510000 ~ 513999 (Count: 4,000) Example: +420-251-510000 / 00420-251-510000 (251-510000 / -251-510000) +420-251-510001 / 00420-251-510001 (251-510001 / -251-510001) +420-251-510002 / 00420-251-510002 (251-510002 / -251-510002) +420-251-510003 / 00420-251-510003 (251-510003 / -251-510003) +420-251-510004 / 00420-251-510004 (251-510004 / -251-510004) ...+420-251-xxxxxx / 00420-251-xxxxxx (251-xxxxxx / -251-xxxxxx) ...+420-251-513995 / 00420-251-513995 (251-513995 / -251-513995) +420-251-513996 / 00420-251-513996 (251-513996 / -251-513996) +420-251-513997 / 00420-251-513997 (251-513997 / -251-513997) +420-251-513998 / 00420-251-513998 (251-513998 / -251-513998) +420-251-513999 / 00420-251-513999 (251-513999 / -251-513999)