AS1657 University of Louisville
184.108.40.206/19 - UNIV-LOUIS
NetHandle: NET-136-165-0-0-1 OrgID: UNIVER-261 Parent: NET-136-0-0-0-0 NetName: UNIV-LOUIS NetRange: 220.127.116.11 - 18.104.22.168 NetType: assignment RegDate: 1989-09-04 Updated: 2004-04-20 NOCHandle: UOFLN-ARIN AbuseHandle: UOFLA-ARIN TechHandle: UOFLH-ARIN Source: ARIN OrgID: UNIVER-261 OrgName: University of Louisville CanAllocate: Street: Information Technology: Communications Services Street: University of Louisville City: Louisville State/Prov: KY Country: US PostalCode: 40292 RegDate: 1989-09-04 Updated: 2004-04-15 OrgAdminHandle: UNA3-ARIN OrgAbuseHandle: UOFLA-ARIN OrgNOCHandle: UOFLN-ARIN OrgTechHandle: UOFLH-ARIN Source: ARIN
IP address subranges within this IP range
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.