Or Thelasar, (Isa. 37:12; 2 Kings 19:12), a province in the south-east of Assyria, probably in Babylonia. Some have identified it with Tel Afer, a place in Mesopotamia, some 30 miles from Sinjar.
from http://en.wikipedia.org/wiki/Elam
KJB=‘Telassar’ ESV=‘Telassar’
Grateful thanks to Viz.Bible for this data.