Independently evaluating the performance of the billing systems of wireless carriers. Devices are provisioned with a collection profile that enables the devices to capture event data at the devices that corresponds to billable events. The collected data is uploaded to a collection and management system. The collection and management system can then compare the collected event data with the billable data generated by the billing systems of wireless carriers to identify discrepancies in the billable events, determine relative performance of elements in the carrier's wireless networks, and identify traffic or load based loss in carrier's billable data.