Area Code +359-37-(840000...849999) located in Konstantinovo, Haskovo (26), more detail is as below. Place International Dialing Code : 359 International Prefix : 00 National Prefix : 0 National Destination Code : 37 Subscriber Number From : 840000 Subscriber Number To : 849999 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 : 26 Region Name : Haskovo City : Konstantinovo Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 41.9900 Longitude : 25.7900 ‹ previous : +359-37-(830000...839999) next › : +359-37-(850000...859999) Dialling Instructions For trunk calls: 0 37 840000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 37 840000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 840000 ~ 849999 (Count: 10,000) Example: +359-37-840000 / 00359-37-840000 (037-840000 / 0-37-840000) +359-37-840001 / 00359-37-840001 (037-840001 / 0-37-840001) +359-37-840002 / 00359-37-840002 (037-840002 / 0-37-840002) +359-37-840003 / 00359-37-840003 (037-840003 / 0-37-840003) +359-37-840004 / 00359-37-840004 (037-840004 / 0-37-840004) ...+359-37-xxxxxx / 00359-37-xxxxxx (037-xxxxxx / 0-37-xxxxxx) ...+359-37-849995 / 00359-37-849995 (037-849995 / 0-37-849995) +359-37-849996 / 00359-37-849996 (037-849996 / 0-37-849996) +359-37-849997 / 00359-37-849997 (037-849997 / 0-37-849997) +359-37-849998 / 00359-37-849998 (037-849998 / 0-37-849998) +359-37-849999 / 00359-37-849999 (037-849999 / 0-37-849999)