From the ARIN site:
"The name-based system of virtual webhosting used by many ISPs today allows multiple domains to be hosted by a single IP address. While some organizations use IP-based webhosting to, in part, justify their requests for IP space, ARIN will no longer accept IP-based hosting as justification for an allocation unless an exception is warranted. The ARIN Instructions for Using Name-based Virtual Webhosting may be a helpful tool in setting up, converting to, and using name-based hosting."
Name-based virtual hosting does not work in many, MANY cases. Beyond this, if you have multiple customers on a single IP address and one of them is an idiot and spamvertizes their website, several providers have a policy of nullrouting the /32. Now, not only does it kill a single site but, potentially hundreds!
--- John Fraizer EnterZone, Inc
That might be an advantage in fighting spam. Think of the potential lawsuits against the hosting company and the spammer for loss of business from the spam block. The hosting company should not have accepted a spammer or as soon as they are known to be a spammer, they must take action to prevent loss of business to the non-spammer customers ;) -- Richard Shetron multics@ruserved.com multics@acm.rpi.edu NO UCE What is the Meaning of Life? There is no meaning, It's just a consequence of complex carbon based chemistry; don't worry about it The Super 76, "Free Aspirin and Tender Sympathy", Las Vegas Strip.