Area Code +48-23-(6770000...6770999) located in Ciechanow, more detail is as below. Place International Dialing Code : 48 International Prefix : 00 National Destination Code : 23 Subscriber Number From : 6770000 Subscriber Number To : 6770999 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 : Netia 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-(6767000...6767999) next › : +48-23-(6771000...6771999) Dialling Instructions For trunk calls: - 23 6770000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 48 23 6770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6770000 ~ 6770999 (Count: 1,000) Example: +48-23-6770000 / 0048-23-6770000 (23-6770000 / -23-6770000) +48-23-6770001 / 0048-23-6770001 (23-6770001 / -23-6770001) +48-23-6770002 / 0048-23-6770002 (23-6770002 / -23-6770002) +48-23-6770003 / 0048-23-6770003 (23-6770003 / -23-6770003) +48-23-6770004 / 0048-23-6770004 (23-6770004 / -23-6770004) ...+48-23-xxxxxxx / 0048-23-xxxxxxx (23-xxxxxxx / -23-xxxxxxx) ...+48-23-6770995 / 0048-23-6770995 (23-6770995 / -23-6770995) +48-23-6770996 / 0048-23-6770996 (23-6770996 / -23-6770996) +48-23-6770997 / 0048-23-6770997 (23-6770997 / -23-6770997) +48-23-6770998 / 0048-23-6770998 (23-6770998 / -23-6770998) +48-23-6770999 / 0048-23-6770999 (23-6770999 / -23-6770999)