1. A computer-implemented method for analyzing call routing in a network, the method comprising: capturing call detail record (CDR) data from one or more network elements; storing the captured CDR data in CDR attribute tables, wherein each table includes call entries including CDR attribute values associated with a respective network element; selecting a network element; retrieving selected CDR attribute values from call entries in a CDR attribute table associated with the selected network element, wherein the selected CDR attribute values include one or more call setup attribute values and one or more amount attribute values in the call entries; selecting a combination of one or more call setup attribute values retrieved from one or more call entries; summing each of the one or more amount attribute values from one or more call entries having the selected combination of one or more call setup attribute values; and generating a refined call entry including the selected combination of call setup attribute values and each of the one or more summed amount attribute values.