I'm encountering some IP strangeness today and hoping to find an explanation.
In short, I'm based in Seattle, WA with my ISP being Comcast.
While browsing Facebook's account settings, I noticed that my active session was located to Mount Laurel, NJ.
At that point I ran a search in Google for 'my public IP', which returned an interesting result: a string of characters in the following format:
2601:8:b000:xxx:xxxx:xxxx:xxxx:xxxx
Normally, a search for my IP returns something like:
67.xxx.xx.xxx
A phone call to Comcast got me nowhere, but using Comcast's phone-menu debugging tools, I was able to send a 'refresh signal' to my modem. After that, the search for 'my public IP' yielded the expected result... for about 5 minutes, and then it returned to the new string of characters.
Does anyone know of an explanation for this?