Sure enough, here's your IP address, or that of a Proxy address.
For example, AOL uses proxy addresses.
To see if it matches your IP, click Start, Run and type: winipcfg and click ok.

Or if you're using Windows 2000 or XP open a command window and type:
 ipconfig and press enter.

IP: 54.146.18.105

And while we're at it, below should be your Browser and Operating System.
The server uses this to send you the page properly.
This is also known as the User Agent which can be found in the system registry here: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
 

User AgentCCBot/2.0 (http://commoncrawl.org/faq/):