thats with every ISP guy, you posted an awfull LOT of IP's, some of which are dialup IP's of lots of different ISP', for example, 172.* is a class b IP range that most AOL customers have, and you have blacklisted it. who WOULD spam with dialup? its an extremely slow service. im not saying people dont do, as i am sure there are, but its not as common as it is with a dynamic ip dsl service. since transfering with dsl is much more quick than it is 56k standard dialup.

but as many ip ranges as you specified, you will be blocking alot of people, you might as well just block *.*.*.* since thats what it seems as tho your trying to do. its very ambiguous.