Six Months
Six months. That’s how long Comcast keeps its records that allow it to track the activity of a Comcast Internet subscriber. At least that’s what Comcast’s Cable Law Enforcement Manual, which somebody liberated and got into the hands of Secrecy News, says.Because Comcast’s system of allocating IP addresses uses Dynamic Host Configuration Protocol (DHCP), its subscribers are not assigned a single, constant or static IP address.