Area Code +359-31-(230000...239999) located in Kalojanovo, 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 : 230000 Subscriber Number To : 239999 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 : Kalojanovo Timezone : Europe/Sofia Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 42.3600 Longitude : 24.7300 ‹ previous : +359-31-(220000...229999) next › : +359-31-(240000...249999) Dialling Instructions For trunk calls: 0 31 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 359 31 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 239999 (Count: 10,000) Example: +359-31-230000 / 00359-31-230000 (031-230000 / 0-31-230000) +359-31-230001 / 00359-31-230001 (031-230001 / 0-31-230001) +359-31-230002 / 00359-31-230002 (031-230002 / 0-31-230002) +359-31-230003 / 00359-31-230003 (031-230003 / 0-31-230003) +359-31-230004 / 00359-31-230004 (031-230004 / 0-31-230004) ...+359-31-xxxxxx / 00359-31-xxxxxx (031-xxxxxx / 0-31-xxxxxx) ...+359-31-239995 / 00359-31-239995 (031-239995 / 0-31-239995) +359-31-239996 / 00359-31-239996 (031-239996 / 0-31-239996) +359-31-239997 / 00359-31-239997 (031-239997 / 0-31-239997) +359-31-239998 / 00359-31-239998 (031-239998 / 0-31-239998) +359-31-239999 / 00359-31-239999 (031-239999 / 0-31-239999)