In embodiments of mesh network addressing, a router device receives provisioning domains that include an address prefix and an associated preference value for the address prefix. The router determines a route, based on one of the address prefixes, to use to forward a data packet to a destination. The router uses the preference values to prioritize the routing of the data packet. In other aspects, the preference values can be set based on one or more factors, and the router can use the preference values in addition to mesh network routing costs to determine a route for a data packet.