Area Code +30-231-(0300000...0309999) located in Thessaloniki, Thessaloniki (54), more detail is as below. Place International Dialing Code : 30 International Prefix : 00 National Prefix : 0 National Destination Code : 231 Subscriber Number From : 0300000 Subscriber Number To : 0309999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : OTE S.A Click here to buy Greece Area Code Database Other Information Language Code : el (Greek) Country Number : 300 (Greece) Country Code : GR (Greece) Region Code : 54 Region Name : Thessaloniki City : Thessaloniki Timezone : Europe/Athens Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 40.6400 Longitude : 22.9400 ‹ previous : +30-231-(0290000...0299999) next › : +30-231-(0310000...0319999) Dialling Instructions For trunk calls: - 231 0300000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 231 0300000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 0300000 ~ 0309999 (Count: 10,000) Example: +30-231-0300000 / 0030-231-0300000 (0231-0300000 / 0-231-0300000) +30-231-0300001 / 0030-231-0300001 (0231-0300001 / 0-231-0300001) +30-231-0300002 / 0030-231-0300002 (0231-0300002 / 0-231-0300002) +30-231-0300003 / 0030-231-0300003 (0231-0300003 / 0-231-0300003) +30-231-0300004 / 0030-231-0300004 (0231-0300004 / 0-231-0300004) ...+30-231-xxxxxxx / 0030-231-xxxxxxx (0231-xxxxxxx / 0-231-xxxxxxx) ...+30-231-0309995 / 0030-231-0309995 (0231-0309995 / 0-231-0309995) +30-231-0309996 / 0030-231-0309996 (0231-0309996 / 0-231-0309996) +30-231-0309997 / 0030-231-0309997 (0231-0309997 / 0-231-0309997) +30-231-0309998 / 0030-231-0309998 (0231-0309998 / 0-231-0309998) +30-231-0309999 / 0030-231-0309999 (0231-0309999 / 0-231-0309999)