Taking an interval as input, this module will construct the smallest set of prefixes, such that all numbers in the interval will match exactly one of the prefixes, and no prefix will match a number not in the interval. This type of conversion is particularly useful when working with telephony switching equipment, which usually determines call routing based on number prefixes rather than ranges. See the POD for further documentation. Install the usual way: perl Makefile.PL make make test make install or, if you've got Module::Build installed: perl Build.PL perl Build perl Build test perl Build install Copyright (c) 2003 Lars Thegler. All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.