1. A method in a computer system for identifying a preferred server for use by the computer system, the computer system having a numerical network address, the method comprising the steps of: determining the network address of the computer system; retrieving a table indicating, for each of a plurality of ranges of numerical network addresses, a preferred server for computer systems having network addresses within the range; comparing the determined network address of the computer system to the ranges of the table to identify a preferred server for the computer system; and retrieving data from the identified preferred server.