Electricity supply, telephones and mobile coverage
Updated mobile coverage maps are available on the companies' websites at Telenor and Netcom. Both coverage maps are in Norwegian only, but are simple, bringing up local coverage maps by county (fylke) and municipality (kommune).
Other mobile service operators use one or the other of these two physical networks. For example, Tele2 uses the Telenor network. A smaller operator, Teletopia, provides mobile coverage in the Oslo area and a map at www.teletopia.no.
Upon logon in Norway, a mobile phone with a SIM card for a subscription in another country will automatically perform a search to find the network with which the subscription supplier has an agreement and indicate its selection on screen. For instance, a mobile phone with a number in the Orange network in France will display "N Telenor, Orange F" onscreen, indicating that it is logged onto the Telenor network.
As elsewhere, all calls from mobiles registered in networks in other countries are international, so to call a number in any country, you must enter its international prefex preceeded by two zeros, such as 0044 for the UK or 0047 for Norway.