Area Code +48-23-(6120000...6129999) located in Ciechanow, more detail is as below. Place International Dialing Code : 48 International Prefix : 00 National Destination Code : 23 Subscriber Number From : 6120000 Subscriber Number To : 6129999 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-(6110000...6119999) next › : +48-23-(6130000...6139999) Dialling Instructions For trunk calls: - 23 6120000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 48 23 6120000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6120000 ~ 6129999 (Count: 10,000) Example: +48-23-6120000 / 0048-23-6120000 (23-6120000 / -23-6120000) +48-23-6120001 / 0048-23-6120001 (23-6120001 / -23-6120001) +48-23-6120002 / 0048-23-6120002 (23-6120002 / -23-6120002) +48-23-6120003 / 0048-23-6120003 (23-6120003 / -23-6120003) +48-23-6120004 / 0048-23-6120004 (23-6120004 / -23-6120004) ...+48-23-xxxxxxx / 0048-23-xxxxxxx (23-xxxxxxx / -23-xxxxxxx) ...+48-23-6129995 / 0048-23-6129995 (23-6129995 / -23-6129995) +48-23-6129996 / 0048-23-6129996 (23-6129996 / -23-6129996) +48-23-6129997 / 0048-23-6129997 (23-6129997 / -23-6129997) +48-23-6129998 / 0048-23-6129998 (23-6129998 / -23-6129998) +48-23-6129999 / 0048-23-6129999 (23-6129999 / -23-6129999)