If the field is a string, rather than numeric, then you could try:
select * from tablename where T1_AssetNo = any ("44954","44595","44596","44597","44598","44599","44600","44601","44602","44603","44604","44605","44606","44607","44608","44609","44611","44612","44613")
or depending on the asset number range, you could use a wildcard:
select * from tablename where T1_AssetNo like "4459%" OR T1_AssetNo like "460%"
Greg