It depends on how serious the DDOS and if you expect it to continue. Switching to another host and not letting them know about your situation could result in some unpleasantness.<p>There are hosting providers which specialize in hosting sites which are under DDOS attacks.<p>Depending on your needs (shared, dedicated, etc.) you might want to investigate a number of different companies. In the past I've found webhostingtalk to be an OK community for knowledge about this sort of thing.<p>If you just want a name for right now, I've heard ok things about <a href="http://www.blacklotus.net/" rel="nofollow">http://www.blacklotus.net/</a> . They do shared hosting, dedicated servers, or if you want to keep a server farm on something like EC2 they do reverse proxying (although since you use 1&#38;1 I'm assuming that your probably on either shared or a single dedicated box). There may be better providers out there, its been a long time (thankfully) since I've head to look into this sort of thing.