Billing data associated with telecom products provided by a variety of vendors is captured, normalized, and processed to calculate true profit margins by invoice, by vendor, by geographic location, by end-customer, by circuit, or combinations of these. A bill may be received from the vendor, and associated with a specific vendor profile. The vendor profile may include a validation routine specific to the vendor. A plurality of telephone numbers associated with an end-customer may be extracted from the bill based on the vendor profile and stored on a storage device. A previous bill from the vendor may be accessed in response to receiving the bill from the vendor. End-customer profitability may be determined for a first time period based on data extracted from the received bill and displayed.