Area Code +48-23-(6730000...6739999) located in Ciechanow, more detail is as below. Place International Dialing Code : 48 International Prefix : 00 National Destination Code : 23 Subscriber Number From : 6730000 Subscriber Number To : 6739999 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 : Orange Polska S.A. Click here to buy Poland Area Code Database Other Information Language Code : pl (Polish) Country Number : 616 (Poland) Country Code : PL (Poland) City : Ciechanow Timezone : Europe/Warsaw Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.8800 Longitude : 20.6200 ‹ previous : +48-23-(6720000...6729999) next › : +48-23-(6740000...6740999) Dialling Instructions For trunk calls: - 23 6730000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 48 23 6730000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6730000 ~ 6739999 (Count: 10,000) Example: +48-23-6730000 / 0048-23-6730000 (23-6730000 / -23-6730000) +48-23-6730001 / 0048-23-6730001 (23-6730001 / -23-6730001) +48-23-6730002 / 0048-23-6730002 (23-6730002 / -23-6730002) +48-23-6730003 / 0048-23-6730003 (23-6730003 / -23-6730003) +48-23-6730004 / 0048-23-6730004 (23-6730004 / -23-6730004) ...+48-23-xxxxxxx / 0048-23-xxxxxxx (23-xxxxxxx / -23-xxxxxxx) ...+48-23-6739995 / 0048-23-6739995 (23-6739995 / -23-6739995) +48-23-6739996 / 0048-23-6739996 (23-6739996 / -23-6739996) +48-23-6739997 / 0048-23-6739997 (23-6739997 / -23-6739997) +48-23-6739998 / 0048-23-6739998 (23-6739998 / -23-6739998) +48-23-6739999 / 0048-23-6739999 (23-6739999 / -23-6739999)