1. A method of managing service calls directed to a call center; comprising; receiving an incoming service call; retrieving a node identification, the node identification identifying the node through which one or more customers are tethered; converting the node identification into a node identification numeric value; returning the node identification numeric value to a call distribution system; determining if the incoming service call should receive a priority treatment, wherein the priority treatment is received when the node identification numeric value is within a range associated with a plurality of nodes of interest; and if the incoming service call should receive priority treatment, routing the incoming service call according to a priority call routing instruction.