NetHandle: NET-166-66-0-0-1 OrgID: MILLER-1 Parent: NET-166-0-0-0-0 NetName: MILLERSVILLE NetRange: 18.104.22.168 - 22.214.171.124 NetType: assignment RegDate: 1993-10-22 Updated: 2009-07-01 Source: ARIN OrgID: MILLER-1 OrgName: Millersville University CanAllocate: Street: Boyer Building Street: 37 W. Frederick Street City: Millersville State/Prov: PA Country: US PostalCode: 17551 RegDate: 1992-08-06 Updated: 2014-09-11 OrgAdminHandle: LSE7-ARIN OrgNOCHandle: LONGE7-ARIN OrgAbuseHandle: ABUSE725-ARIN OrgTechHandle: SMC89-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.