> to tell you what specific customer that IP was assigned to at a given time
Provided they keep such logs (which they probably shouldn't, unless required by law).
Provided they keep such logs (which they probably shouldn't, unless required by law).
Comcast is 180 days - https://www.xfinity.com/-/media/4231839e374c4f618b2d34004d50...
I could not find a specific number for Frontier - https://content.frontier.com/-/jssmedia/documents/corporate/...