Area Code +359-77-(420000...429999) located in Kalishhe, Pernik (14), more detail is as below. Place International Dialing Code : 359 International Prefix : 00 National Prefix : 0 National Destination Code : 77 Subscriber Number From : 420000 Subscriber Number To : 429999 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 : 14 Region Name : Pernik City : Kalishhe Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 42.4900 Longitude : 22.8400 ‹ previous : +359-77-(410000...419999) next › : +359-77-(430000...439999) Dialling Instructions For trunk calls: 0 77 420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 77 420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 420000 ~ 429999 (Count: 10,000) Example: +359-77-420000 / 00359-77-420000 (077-420000 / 0-77-420000) +359-77-420001 / 00359-77-420001 (077-420001 / 0-77-420001) +359-77-420002 / 00359-77-420002 (077-420002 / 0-77-420002) +359-77-420003 / 00359-77-420003 (077-420003 / 0-77-420003) +359-77-420004 / 00359-77-420004 (077-420004 / 0-77-420004) ...+359-77-xxxxxx / 00359-77-xxxxxx (077-xxxxxx / 0-77-xxxxxx) ...+359-77-429995 / 00359-77-429995 (077-429995 / 0-77-429995) +359-77-429996 / 00359-77-429996 (077-429996 / 0-77-429996) +359-77-429997 / 00359-77-429997 (077-429997 / 0-77-429997) +359-77-429998 / 00359-77-429998 (077-429998 / 0-77-429998) +359-77-429999 / 00359-77-429999 (077-429999 / 0-77-429999)