\documentclass{article}
\parindent0pt
\font\kixfont=kix
\def\alnum#1{\ensuremath{\stackrel{\texttt{#1}}{\textrm{\kixfont #1}}}}
\def\spc{\mbox{\phantom{\kixfont A}}}
\begin{document}
\section*{Een lijstje KIX-codes}
\alnum 1\spc
\alnum 2\spc
\alnum 3\spc
\alnum 4\spc
\alnum 5\spc
\alnum 6\spc
\alnum 7\spc
\alnum 8\spc
\alnum 9\spc
\alnum 0\\

\alnum A\spc
\alnum B\spc
\alnum C\spc
\alnum D\spc
\alnum E\spc
\alnum F\spc
\alnum G\spc
\alnum H\spc
\alnum I\spc
\alnum J\spc
\alnum K\spc
\alnum L\spc
\alnum M\\

\alnum N\spc
\alnum O\spc
\alnum P\spc
\alnum Q\spc
\alnum R\spc
\alnum S\spc
\alnum T\spc
\alnum U\spc
\alnum V\spc
\alnum W\spc
\alnum X\spc
\alnum Y\spc
\alnum Z\\

\alnum {7523TW96}
\end{document}