Area Code +47-21-(660000...669999) located in All locations, Oslo fylke (03), more detail is as below. Place International Dialing Code : 47 International Prefix : 00 National Destination Code : 21 Subscriber Number From : 660000 Subscriber Number To : 669999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 8 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : NextGenTel AS Click here to buy Norway Area Code Database Other Information Language Code : no Country Number : 578 (Norway) Country Code : NO (Norway) Region Code : 03 Region Name : Oslo fylke City : All locations Timezone : Europe/Oslo Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 59.9300 Longitude : 10.7500 ‹ previous : +47-21-(659000...659999) next › : +47-21-(670000...678999) Dialling Instructions For trunk calls: - 21 660000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 47 21 660000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 660000 ~ 669999 (Count: 10,000) Example: +47-21-660000 / 0047-21-660000 (21-660000 / -21-660000) +47-21-660001 / 0047-21-660001 (21-660001 / -21-660001) +47-21-660002 / 0047-21-660002 (21-660002 / -21-660002) +47-21-660003 / 0047-21-660003 (21-660003 / -21-660003) +47-21-660004 / 0047-21-660004 (21-660004 / -21-660004) ...+47-21-xxxxxx / 0047-21-xxxxxx (21-xxxxxx / -21-xxxxxx) ...+47-21-669995 / 0047-21-669995 (21-669995 / -21-669995) +47-21-669996 / 0047-21-669996 (21-669996 / -21-669996) +47-21-669997 / 0047-21-669997 (21-669997 / -21-669997) +47-21-669998 / 0047-21-669998 (21-669998 / -21-669998) +47-21-669999 / 0047-21-669999 (21-669999 / -21-669999)