Abstract: Techniques to leverage data from mobile headers are described. In one embodiment, for example, an apparatus may comprise a network component, a data component, and a web component. The network component may be operative to receive a request for a web page from a phone, the request transmitted using one or more network packets, and to transmit the web page to the phone. The data component may be operative to extract a phone number from a header of the one or more network packets. The web component may be operative to customize the web page based on the extracted phone number. Other embodiments are described and claimed.