Hi, I'm trying to determine whether a user named "Robert I" an anon posting from a dynamic IP account whose IP always starts with 81.131 and an anon whose dynamic IP always starts with 213.122 are the same person. I know that Robert I has has used 81.131 IPs. I'm wondering if a developer can check if Robert I has ever logged in from an IP beginnign with 213.122 Thanks, Homeontherange Wikipedia-en administrator