Systems and methods which provide known shipper information in association with unknown shipper indicia as disclosed. Embodiments operate to collect information regarding a shipper and associate the shipper information with unknown shipper indicia. Where shipper information satisfactory to a known shipper requirement has not otherwise been collected, embodiments operate to perform a transaction matrix analysis to determine a shipper identification risk level. Such transaction matrix analysis may operate to analyze multiple pieces of shipper information (e.g., collected from different sources) to provide a determination as to a level of risk that the shipper information correctly and/or uniquely identifies the shipper. A shipping service provider, when accepting an item for shipment and/or when processing the item during shipment, may use the unknown shipper indicia to access shipper information associated therewith in accordance to embodiments of the invention to provide an appropriate level of shipping services.