Area Code +359-57-(830000...839999) located in Kotlenci, Dobrich (08), more detail is as below. Place International Dialing Code : 359 International Prefix : 00 National Prefix : 0 National Destination Code : 57 Subscriber Number From : 830000 Subscriber Number To : 839999 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 : 08 Region Name : Dobrich City : Kotlenci Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 43.5700 Longitude : 27.9200 ‹ previous : +359-57-(820000...829999) next › : +359-57-(840000...849999) Dialling Instructions For trunk calls: 0 57 830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 57 830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 830000 ~ 839999 (Count: 10,000) Example: +359-57-830000 / 00359-57-830000 (057-830000 / 0-57-830000) +359-57-830001 / 00359-57-830001 (057-830001 / 0-57-830001) +359-57-830002 / 00359-57-830002 (057-830002 / 0-57-830002) +359-57-830003 / 00359-57-830003 (057-830003 / 0-57-830003) +359-57-830004 / 00359-57-830004 (057-830004 / 0-57-830004) ...+359-57-xxxxxx / 00359-57-xxxxxx (057-xxxxxx / 0-57-xxxxxx) ...+359-57-839995 / 00359-57-839995 (057-839995 / 0-57-839995) +359-57-839996 / 00359-57-839996 (057-839996 / 0-57-839996) +359-57-839997 / 00359-57-839997 (057-839997 / 0-57-839997) +359-57-839998 / 00359-57-839998 (057-839998 / 0-57-839998) +359-57-839999 / 00359-57-839999 (057-839999 / 0-57-839999)