Patent attributes
Systems, methods, and apparatus to monitor mobile Internet activity are disclosed. An example apparatus includes at least one memory, and processor circuitry to execute instructions to at least assign (i) a first port of a proxy server to a first mobile device associated with a first panelist and (ii) a second port of the proxy server to a second mobile device associated with a second panelist, in response to receiving an un-authenticated request for media from at least one of the first, second, or third mobile devices, service the un-authenticated request in response to determining that the un-authenticated request is from an Internet Protocol (IP) address associated with an IP address range representative of devices on a cellular network, and, in response to servicing the un-authenticated request via the first port, store an association between the media and first panelist demographic information associated with the first mobile device.