Locality-based routing table generation

Systems and methods storage of adding a node entry to a routing table of an inquiring node of a data network are disclosed herein. An inquire message is transmitted to a publishing node. The publishing node can be configured to publish a routing entry which can be added by nodes of a network. An acknowledgment response can be received from the publishing node. The roundtrip time elapsed between transmitting the inquire message and receiving the response can be measured by the inquiring node. For all node registration entries in the routing table of the inquiring node a determination of whether the inquiring node is closest in locality to the publishing node than to a node corresponding to each node registration entry can be performed. Such determination can be made based on (a) the roundtrip time between nodes (b) node IP address prefix matching.