Area Code +48-23-(6540000...6549999) located in Ciechanow, more detail is as below. Place International Dialing Code : 48 International Prefix : 00 National Destination Code : 23 Subscriber Number From : 6540000 Subscriber Number To : 6549999 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-(6534000...6534999) next › : +48-23-(6550000...6559999) Dialling Instructions For trunk calls: - 23 6540000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 48 23 6540000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6540000 ~ 6549999 (Count: 10,000) Example: +48-23-6540000 / 0048-23-6540000 (23-6540000 / -23-6540000) +48-23-6540001 / 0048-23-6540001 (23-6540001 / -23-6540001) +48-23-6540002 / 0048-23-6540002 (23-6540002 / -23-6540002) +48-23-6540003 / 0048-23-6540003 (23-6540003 / -23-6540003) +48-23-6540004 / 0048-23-6540004 (23-6540004 / -23-6540004) ...+48-23-xxxxxxx / 0048-23-xxxxxxx (23-xxxxxxx / -23-xxxxxxx) ...+48-23-6549995 / 0048-23-6549995 (23-6549995 / -23-6549995) +48-23-6549996 / 0048-23-6549996 (23-6549996 / -23-6549996) +48-23-6549997 / 0048-23-6549997 (23-6549997 / -23-6549997) +48-23-6549998 / 0048-23-6549998 (23-6549998 / -23-6549998) +48-23-6549999 / 0048-23-6549999 (23-6549999 / -23-6549999)