Area Code +420-770-(770000...779999) located in Public mobile network, more detail is as below. Place International Dialing Code : 420 International Prefix : 00 National Destination Code : 770 Subscriber Number From : 770000 Subscriber Number To : 779999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : M (Mobile, Cellular) Carrier Name : GTS Czech 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) City : Public mobile network Timezone : Europe/Prague Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 50.0800 Longitude : 14.4400 ‹ previous : +420-770-(500000...509999) next › : +420-771-(770000...779999) Dialling Instructions For trunk calls: - 770 770000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 420 770 770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 770000 ~ 779999 (Count: 10,000) Example: +420-770-770000 / 00420-770-770000 (770-770000 / -770-770000) +420-770-770001 / 00420-770-770001 (770-770001 / -770-770001) +420-770-770002 / 00420-770-770002 (770-770002 / -770-770002) +420-770-770003 / 00420-770-770003 (770-770003 / -770-770003) +420-770-770004 / 00420-770-770004 (770-770004 / -770-770004) ...+420-770-xxxxxx / 00420-770-xxxxxx (770-xxxxxx / -770-xxxxxx) ...+420-770-779995 / 00420-770-779995 (770-779995 / -770-779995) +420-770-779996 / 00420-770-779996 (770-779996 / -770-779996) +420-770-779997 / 00420-770-779997 (770-779997 / -770-779997) +420-770-779998 / 00420-770-779998 (770-779998 / -770-779998) +420-770-779999 / 00420-770-779999 (770-779999 / -770-779999)