Geographic location determination for a client is facilitated by performing a trace route between a known network device and the client. The trace route results in a list of intermediary network devices between the client and the known network device. Network addresses may be configured with geographically significant portions. Thus, network addresses for the client and/or one or more of the intermediary devices can be inspected to facilitated a geographic location determination for the client based on the geographically significant portions. An online service provider hosting network sites may prepare client activity reports for the hosted sites using the determined geographic data. The determined geographic locations may also be used to ensure compliance, such as with regulations, distribution agreements, etc., for data distributions to clients.