Area Code +359-81-(170000...179999) located in Marten, Ruse (18), more detail is as below. Place International Dialing Code : 359 International Prefix : 00 National Prefix : 0 National Destination Code : 81 Subscriber Number From : 170000 Subscriber Number To : 179999 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 : 18 Region Name : Ruse City : Marten Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 43.9200 Longitude : 26.0800 ‹ previous : +359-81-(160000...169999) next › : +359-81-(180000...189999) Dialling Instructions For trunk calls: 0 81 170000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 81 170000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 170000 ~ 179999 (Count: 10,000) Example: +359-81-170000 / 00359-81-170000 (081-170000 / 0-81-170000) +359-81-170001 / 00359-81-170001 (081-170001 / 0-81-170001) +359-81-170002 / 00359-81-170002 (081-170002 / 0-81-170002) +359-81-170003 / 00359-81-170003 (081-170003 / 0-81-170003) +359-81-170004 / 00359-81-170004 (081-170004 / 0-81-170004) ...+359-81-xxxxxx / 00359-81-xxxxxx (081-xxxxxx / 0-81-xxxxxx) ...+359-81-179995 / 00359-81-179995 (081-179995 / 0-81-179995) +359-81-179996 / 00359-81-179996 (081-179996 / 0-81-179996) +359-81-179997 / 00359-81-179997 (081-179997 / 0-81-179997) +359-81-179998 / 00359-81-179998 (081-179998 / 0-81-179998) +359-81-179999 / 00359-81-179999 (081-179999 / 0-81-179999)