Area Code +48-23-(6510000...6510999) located in Ciechanow, more detail is as below. Place International Dialing Code : 48 International Prefix : 00 National Destination Code : 23 Subscriber Number From : 6510000 Subscriber Number To : 6510999 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 : E-Telko 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 : 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-(6130000...6139999) next › : +48-23-(6511000...6511999) Dialling Instructions For trunk calls: - 23 6510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 48 23 6510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6510000 ~ 6510999 (Count: 1,000) Example: +48-23-6510000 / 0048-23-6510000 (23-6510000 / -23-6510000) +48-23-6510001 / 0048-23-6510001 (23-6510001 / -23-6510001) +48-23-6510002 / 0048-23-6510002 (23-6510002 / -23-6510002) +48-23-6510003 / 0048-23-6510003 (23-6510003 / -23-6510003) +48-23-6510004 / 0048-23-6510004 (23-6510004 / -23-6510004) ...+48-23-xxxxxxx / 0048-23-xxxxxxx (23-xxxxxxx / -23-xxxxxxx) ...+48-23-6510995 / 0048-23-6510995 (23-6510995 / -23-6510995) +48-23-6510996 / 0048-23-6510996 (23-6510996 / -23-6510996) +48-23-6510997 / 0048-23-6510997 (23-6510997 / -23-6510997) +48-23-6510998 / 0048-23-6510998 (23-6510998 / -23-6510998) +48-23-6510999 / 0048-23-6510999 (23-6510999 / -23-6510999)