Area Code +359-37-(280000...289999) located in Slavjanovo, 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 : 280000 Subscriber Number To : 289999 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 : Slavjanovo Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 41.8100 Longitude : 25.7800 ‹ previous : +359-37-(270000...279999) next › : +359-37-(290000...299999) Dialling Instructions For trunk calls: 0 37 280000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 37 280000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 280000 ~ 289999 (Count: 10,000) Example: +359-37-280000 / 00359-37-280000 (037-280000 / 0-37-280000) +359-37-280001 / 00359-37-280001 (037-280001 / 0-37-280001) +359-37-280002 / 00359-37-280002 (037-280002 / 0-37-280002) +359-37-280003 / 00359-37-280003 (037-280003 / 0-37-280003) +359-37-280004 / 00359-37-280004 (037-280004 / 0-37-280004) ...+359-37-xxxxxx / 00359-37-xxxxxx (037-xxxxxx / 0-37-xxxxxx) ...+359-37-289995 / 00359-37-289995 (037-289995 / 0-37-289995) +359-37-289996 / 00359-37-289996 (037-289996 / 0-37-289996) +359-37-289997 / 00359-37-289997 (037-289997 / 0-37-289997) +359-37-289998 / 00359-37-289998 (037-289998 / 0-37-289998) +359-37-289999 / 00359-37-289999 (037-289999 / 0-37-289999)