quote:Originally posted by Don YonceI'm not sure I understand what you are asking, but... here goes.SolarWinds used to have an extension to Network Sonar that would add information about who owned each network including city, ISP, provider, etc. I'll see if I can find it.Also, SolarWinds "DNS/Who Is Resolver" can tell you information about each network/subnet. For example, 204.213.145.0 is :Network Information for 204.213.145.0OrgName: SprintOrgID: SPRNAddress: 12502 Sunrise Valley DriveCity: RestonStateProv: VAPostalCode: 20196Country: USNetRange: 204.212.0.0 - 204.215.255.255CIDR: 204.212.0.0/14NetName: SPRINT-BLKB2NetHandle: NET-204-212-0-0-1Parent: NET-204-0-0-0-0NetType: Direct AllocationNameServer: NS1-AUTH.SPRINTLINK.NETNameServer: NS2-AUTH.SPRINTLINK.NETNameServer: NS3-AUTH.SPRINTLINK.NETComment: ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLERegDate: 1994-12-11Updated: 1996-09-10TechHandle: SPRINT-NOC-ARINTechName: Sprintlink (Sprint)TechPhone: +1-800-232-6895TechEmail: NOC@sprint.netOrgTechHandle: ARINS-ARINOrgTechName: arin-sprint-iprequestOrgTechPhone: +1-800-232-3458OrgTechEmail: ip-req@sprint.net