No, there many Aasen names in Norway. My grandmother Aasen family came from Tunnhovd, Numedal, Norway. They had two Aasen farms north & south.I work on Norsk farm names daily helping people find their relatives. There are about 150,000 farm names in Norway dating from year 1100 up. Often, I can find your farm name and name the neighbors who are often relatives over the many years. My name/address; Merle W. Gregerson, N5995, Hwy. 35, Onalaska, WI 54650.