Naram-Sin, or Narām-Sîn or –Suen, inscribed in cuneiform on contemporary seal impressions as dna-ra-am-d, had been the en5.si ("ensí") or "waklum" (da-šùr) or "Išši’ak Aššur" (Steward of Assur) of the city-state Assur, listed as the 37th king of Assyria on the later Assyrian King Lists, where he is inscribed mna-ram-d, or a fragmentary list where he appears as -d30. He was named for the illustrious Naram-Sin of Akkad and took the divine determinative in his name (just like Naram-Sin's grandfather: Sargon I, who may have been named after Sargon of Akkad.) Naram-Sin should not be confused with the Naram-Sin who had ruled Eshnunna for around twelve years (the successor and son, as identified on an inscription, of the long-reigning Ebiq-Adad II.) It is probable that Naram-Sin of Assur was, however, contemporaneous with the earlier part of Ebiq-Adad II’s reign (whose last attestation was in the Mari Eponym Chronicle B line 25 some 56 years after Naram-Sin’s inauguration.) Naram-Sin of Assyria was the son and successor of the short-reigning Puzur-Ashur II, filiation preserved in his seal impression on the envelopes of the waklum-letters to his expat Anatolian-based traders at the karum Kanesh and in the later Assyrian King Lists.
The length of Naram-Sin's reign is uncertain, however; based on various excavated "limmu" (eponym) lists, the reigns of Naram-Sin and his son and successor Erishum II had a combined length of 64 years. The Assyrian King List records that Shamshi-Adad I, “went away to Babylonia in the time of Naram-Sin.” Shamshi-Adad I did not return until he had taken Ekallatum, after which he paused for three years and then overthrew Erishum II. The Mari Eponym Chronicle, which resumes the listing until the seizure of Ekallatum by Shamshi-Adad I, provides no clue as to when the succession of Erishum II had taken place. As the reign of Erishum II was prematurely ended by the conquests of Shamshi-Adad I, it is likely that Naram-Sin's reign was the greater part of the period, additionally; the broken figure on the Nassouhi King List ends on four, so perhaps Naram-Sin reigned 44 or 54 years (c. 1872 BC onward, middle chronology). Despite this, there are no extant monumental inscriptions recording his activities.
The following is a list of the last 27 annually-elected limmu officials listed on the extant Kültepe Eponym Lists (KEL) representing Naram-Sin's first years (ending nearly a decade before Naram-Sin's 35th year during which the karum Kanesh was destroyed c. 1837 BC, the II layer.) The city-state of Assur which Naram-Sin had inherited would have been fairly wealthy as the hub of the trading network at the height of the Old Assyrian Empire's activity and despite the destruction of the trading post at Kanesh partway through his reign, commerce apparently continued elsewhere. A gap of up to four years is apparent between the end of the KEL and the beginning of the Mari Eponym Chronicle (MEC B.) There are no extant monumental inscriptions recording his activities. The dating on this list uses the middle chronology for the ancient near east: