Area Code +420-251-(550000...556999) 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 : 550000 Subscriber Number To : 556999 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-(510000...513999) next › : +420-251-(560000...566999) Dialling Instructions For trunk calls: - 251 550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 251 550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 550000 ~ 556999 (Count: 7,000) Example: +420-251-550000 / 00420-251-550000 (251-550000 / -251-550000) +420-251-550001 / 00420-251-550001 (251-550001 / -251-550001) +420-251-550002 / 00420-251-550002 (251-550002 / -251-550002) +420-251-550003 / 00420-251-550003 (251-550003 / -251-550003) +420-251-550004 / 00420-251-550004 (251-550004 / -251-550004) ...+420-251-xxxxxx / 00420-251-xxxxxx (251-xxxxxx / -251-xxxxxx) ...+420-251-556995 / 00420-251-556995 (251-556995 / -251-556995) +420-251-556996 / 00420-251-556996 (251-556996 / -251-556996) +420-251-556997 / 00420-251-556997 (251-556997 / -251-556997) +420-251-556998 / 00420-251-556998 (251-556998 / -251-556998) +420-251-556999 / 00420-251-556999 (251-556999 / -251-556999)