[Genome] refseq annotation tables

[Park, Richard]

To whom this may concern, 

I have been trying to find the refseq information (via refGene table). To find refseq ids starting w/ XM, XP, or NP. I can not find the table that stores this data for hg18 (human). 

The browser recognizes the query, but i can not find the underlying data annotation table. 

If you could please point me to the specific table that has these annotations, that would be very helpful, 

thank you, 
Richard Park