RapidSocks is Cool for Xrumer! Hard to come by so thought we’d toss that out there first thing. These are Socks4 and Socks5 IPs that rotate every 10 minutes. Each Socks proxy can support up to 10 simultaneous connections and average speeds are 512 kbit/s.
Countries to choose from include: USA, CA, GB, FR, AU, DE. You can also opt to have just U.S. proxies. They also offer a 24 test list of Socks proxies. The private proxies also work with any PHP scripts with cURL and all popular browsers.
Rates are not cheap for these proxies, and are even more expensive if you want all U.S. Proxies. You do have the option to pay by the day or week, however, if you just want to do some “blasts” so that may be worth taking a look at. Proxy service monthly price for 50 proxies at a time is $250, if you want all U.S. Proxies $300. Daily Price for something like this would be $15 and $20 respectively.