Abstract: Systems and methods for network packet routing using geographic information, for example, for routing packets in an IP communication network using geographic routing information embedded in a packet's IP address. One method comprises assigning a device's geographic location and including in its IP address a subnet prefix and a portion comprising an identifier indicative of the device' geographic location. One method facilitates routing of a packet by addressing the packet to a destination device with an IP address comprising a subnet prefix and a portion comprising an identifier indicative of the device's geographic location. The method may further comprise routing the packet from a source device to the destination device using the identifier. One embodiment is a system of a subnet of IP compatible nodes. One or more of these node devices are assigned an IP address comprising a subnet prefix identifying its respective subnet and a portion comprising an identifier indicative of its geographic location.