Nearly 10,000 characters may be shown here. However, the actual number which appear on your screen will depend upon your combination of browser and computer. I wrote the HTML script for this table on an IBM ThinkPad running Windows 98. I use Internet Explorer v.6 to display the script.
 
The characters which were displayed by my combination of computer and browser are shown against a light-brown background. A white background indicates that the character which is represented by the numerical code could not be displayed by the browser.
 
Your combination of computer and browser may give different results. Firefox v.1 displays many more characters than Internet Explorer and no doubt the same might be said of other browsers. If you need to display characters which are not shown here then have a look at Unicode, a sixteen bit system for displaying almost any character; http://www.unicode.org.