Area Code +387-51-(310000...319999) located in Banja Luka, more detail is as below. Place International Dialing Code : 387 International Prefix : 00 National Prefix : 0 National Destination Code : 51 Subscriber Number From : 310000 Subscriber Number To : 319999 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 : Telekom Srpske Click here to buy Bosnia and Herzegovina Area Code Database Other Information Language Code : bs (Bosnian) Country Number : 70 (Bosnia and Herzegovina) Country Code : BA (Bosnia and Herzegovina) City : Banja Luka Timezone : Europe/Sarajevo Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 44.7700 Longitude : 17.1800 ‹ previous : +387-51-(300000...309999) next › : +387-51-(320000...329999) Dialling Instructions For trunk calls: 0 51 310000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 387 51 310000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 310000 ~ 319999 (Count: 10,000) Example: +387-51-310000 / 00387-51-310000 (051-310000 / 0-51-310000) +387-51-310001 / 00387-51-310001 (051-310001 / 0-51-310001) +387-51-310002 / 00387-51-310002 (051-310002 / 0-51-310002) +387-51-310003 / 00387-51-310003 (051-310003 / 0-51-310003) +387-51-310004 / 00387-51-310004 (051-310004 / 0-51-310004) ...+387-51-xxxxxx / 00387-51-xxxxxx (051-xxxxxx / 0-51-xxxxxx) ...+387-51-319995 / 00387-51-319995 (051-319995 / 0-51-319995) +387-51-319996 / 00387-51-319996 (051-319996 / 0-51-319996) +387-51-319997 / 00387-51-319997 (051-319997 / 0-51-319997) +387-51-319998 / 00387-51-319998 (051-319998 / 0-51-319998) +387-51-319999 / 00387-51-319999 (051-319999 / 0-51-319999)