Area Code +48-12-(3770000...3779999) located in Krakow, more detail is as below. Place International Dialing Code : 48 International Prefix : 00 National Destination Code : 12 Subscriber Number From : 3770000 Subscriber Number To : 3779999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Polkomtel Sp. z o.o. Click here to buy Poland Area Code Database Other Information Language Code : pl (Polish) Country Number : 616 (Poland) Country Code : PL (Poland) City : Krakow Timezone : Europe/Warsaw Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 50.0600 Longitude : 19.9400 ‹ previous : +48-12-(3760000...3769999) next › : +48-12-(3780000...3789999) Dialling Instructions For trunk calls: - 12 3770000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 48 12 3770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3770000 ~ 3779999 (Count: 10,000) Example: +48-12-3770000 / 0048-12-3770000 (12-3770000 / -12-3770000) +48-12-3770001 / 0048-12-3770001 (12-3770001 / -12-3770001) +48-12-3770002 / 0048-12-3770002 (12-3770002 / -12-3770002) +48-12-3770003 / 0048-12-3770003 (12-3770003 / -12-3770003) +48-12-3770004 / 0048-12-3770004 (12-3770004 / -12-3770004) ...+48-12-xxxxxxx / 0048-12-xxxxxxx (12-xxxxxxx / -12-xxxxxxx) ...+48-12-3779995 / 0048-12-3779995 (12-3779995 / -12-3779995) +48-12-3779996 / 0048-12-3779996 (12-3779996 / -12-3779996) +48-12-3779997 / 0048-12-3779997 (12-3779997 / -12-3779997) +48-12-3779998 / 0048-12-3779998 (12-3779998 / -12-3779998) +48-12-3779999 / 0048-12-3779999 (12-3779999 / -12-3779999)