Area Code +359-31-(640000...649999) located in Dulbok izvor, 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 : 640000 Subscriber Number To : 649999 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 : Dulbok izvor Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 42.0300 Longitude : 25.1100 ‹ previous : +359-31-(630000...639999) next › : +359-31-(650000...659999) Dialling Instructions For trunk calls: 0 31 640000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 31 640000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 640000 ~ 649999 (Count: 10,000) Example: +359-31-640000 / 00359-31-640000 (031-640000 / 0-31-640000) +359-31-640001 / 00359-31-640001 (031-640001 / 0-31-640001) +359-31-640002 / 00359-31-640002 (031-640002 / 0-31-640002) +359-31-640003 / 00359-31-640003 (031-640003 / 0-31-640003) +359-31-640004 / 00359-31-640004 (031-640004 / 0-31-640004) ...+359-31-xxxxxx / 00359-31-xxxxxx (031-xxxxxx / 0-31-xxxxxx) ...+359-31-649995 / 00359-31-649995 (031-649995 / 0-31-649995) +359-31-649996 / 00359-31-649996 (031-649996 / 0-31-649996) +359-31-649997 / 00359-31-649997 (031-649997 / 0-31-649997) +359-31-649998 / 00359-31-649998 (031-649998 / 0-31-649998) +359-31-649999 / 00359-31-649999 (031-649999 / 0-31-649999)