I spotted comments spammers coming from the ranges under Xeex Communications over a month ago and I blocked them. Today, as I was looking through the Project HoneyPot statistics, I noticed that these ranges are in the top 25 of the comment spammers from the United States.
IP Address Ranges
Using http://whois.arin.net, you can find the information on all of them except the range beginning with 213. For that one, you have to use http://wq.apnic.net/apnic-bin/whois.pl because it’s based in India.
The company domain name for all except the Indian range is xeex.com and the Indian range is xeex.in, and you can look at both of the home pages and come to the same conclusion I did – both sites are owned by the same company.
You should not be receiving incoming connections from any of these ranges unless they’re legitimate pingbacks or trackbacks, something you should be blocking these days anyway, or you have some kind of API agreement (like Facebook connections or something like that).
I will eventually be creating static pages to list Xeex Communications along with hundreds of other places that shouldn’t be connection to your website.