According to Allcitycodes, Norway is a Nordic country located in Northern Europe with a total area of 385,207 km2 and a population of over 5 million people. The terrain consists mainly of mountains, glaciers and deep valleys along the Norwegian Sea coastline. The climate is predominantly temperate, with four distinct seasons; spring, summer, autumn and winter. Average temperatures range between -6°C to 28°C throughout the year with average annual rainfall ranging between 400-1,500 mm. The area code for Norway is +47. This code is used when dialing from outside Norway to any other phone number within it. Additionally, to call a cell phone or landline inside Norway from another country you must dial 00 + 47 + telephone number. There are currently several area codes for different regions across Norway as all numbers are seven digits long starting with four numbers followed by three numbers (e.g xxxx-xxx). Norway also has mobile networks which are operated by Telenor and Network Norway which both use GSM networks with 3G/4G coverage available on both networks. To call a mobile device within Norway you must dial 00+47+ mobile network prefix + telephone number where the mobile network prefixes are either 9 or 8 depending on whether you are calling a Telenor or Network Norway device respectively. Check physicscat for Norway in 2013.