Convert UTF-8 characters to NCR Iconv

Question

I'm trying to convert UTF-8 characters from a file to NCR Hexadecimal. I tried the following:

iconv -f UTF-8 -t //TRANSLIT file --unicode-subst=&#x%04X;'

However, it doesn't do anything, and I can't even find the appropriate encoding name for NCR in iconv --list.