I have uploaded Array-IntSpan-1.01.tar.gz to my directory on CPAN. Here is the proposed Modules list line. Array:: ::IntSpan RdpO Handling arrays using IntSpan techniques TEVERETT Array::IntSpan brings the speed advantages of Set::IntSpan (written by Steven McDougall) to arrays. Uses include manipulating grades, routing tables, or any other situation where you have mutually exclusive ranges of integers that map to given values. Array::IntSpan::IP is also provided with the distribution. It lets you use IP addresses in any of three forms (dotted decimal, network string, and integer) for the indices into the array. --Toby Everett