Area Code +359-51-(630000...639999) located in Mlada gvardija, Varna (03), more detail is as below. Place International Dialing Code : 359 International Prefix : 00 National Prefix : 0 National Destination Code : 51 Subscriber Number From : 630000 Subscriber Number To : 639999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 8 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : BTC Click here to buy Bulgaria Area Code Database Other Information Language Code : bg (Bulgarian) Country Number : 100 (Bulgaria) Country Code : BG (Bulgaria) Region Code : 03 Region Name : Varna City : Mlada gvardija Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 43.2900 Longitude : 27.3700 ‹ previous : +359-51-(620000...629999) next › : +359-51-(640000...649999) Dialling Instructions For trunk calls: 0 51 630000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 51 630000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 630000 ~ 639999 (Count: 10,000) Example: +359-51-630000 / 00359-51-630000 (051-630000 / 0-51-630000) +359-51-630001 / 00359-51-630001 (051-630001 / 0-51-630001) +359-51-630002 / 00359-51-630002 (051-630002 / 0-51-630002) +359-51-630003 / 00359-51-630003 (051-630003 / 0-51-630003) +359-51-630004 / 00359-51-630004 (051-630004 / 0-51-630004) ...+359-51-xxxxxx / 00359-51-xxxxxx (051-xxxxxx / 0-51-xxxxxx) ...+359-51-639995 / 00359-51-639995 (051-639995 / 0-51-639995) +359-51-639996 / 00359-51-639996 (051-639996 / 0-51-639996) +359-51-639997 / 00359-51-639997 (051-639997 / 0-51-639997) +359-51-639998 / 00359-51-639998 (051-639998 / 0-51-639998) +359-51-639999 / 00359-51-639999 (051-639999 / 0-51-639999)