According to the Assyrian King List, he was the son and successor of Ashur-nirari I and ruled for 24 years (or 14 years, according to another copy). He is also the first Assyrian king to appear in the synchronistic history, where he is described as a contemporary of Burnaburiash of Babylon.
A few of his building inscriptions were found at Assur. He rebuilt part of the temple of Ishtar in his capital, Ashur, and the southern parts of the city wall.