Area Code +359-31-(660000...669999) located in Bjala reka, Plovdiv (16), more detail is as below. Place International Dialing Code : 359 International Prefix : 00 National Prefix : 0 National Destination Code : 31 Subscriber Number From : 660000 Subscriber Number To : 669999 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 : 16 Region Name : Plovdiv City : Bjala reka Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 42.0600 Longitude : 25.2600 ‹ previous : +359-31-(650000...659999) next › : +359-31-(670000...679999) Dialling Instructions For trunk calls: 0 31 660000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 31 660000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 660000 ~ 669999 (Count: 10,000) Example: +359-31-660000 / 00359-31-660000 (031-660000 / 0-31-660000) +359-31-660001 / 00359-31-660001 (031-660001 / 0-31-660001) +359-31-660002 / 00359-31-660002 (031-660002 / 0-31-660002) +359-31-660003 / 00359-31-660003 (031-660003 / 0-31-660003) +359-31-660004 / 00359-31-660004 (031-660004 / 0-31-660004) ...+359-31-xxxxxx / 00359-31-xxxxxx (031-xxxxxx / 0-31-xxxxxx) ...+359-31-669995 / 00359-31-669995 (031-669995 / 0-31-669995) +359-31-669996 / 00359-31-669996 (031-669996 / 0-31-669996) +359-31-669997 / 00359-31-669997 (031-669997 / 0-31-669997) +359-31-669998 / 00359-31-669998 (031-669998 / 0-31-669998) +359-31-669999 / 00359-31-669999 (031-669999 / 0-31-669999)