NetHandle: NET-64-81-159-0-1 OrgID: C00157901 Parent: NET-64-81-0-0-1 NetName: SPEK-POP-CHI-0 NetRange: 220.127.116.11 - 18.104.22.168 NetType: reassignment RegDate: 2001-03-13 Updated: 2001-03-13 Source: ARIN OrgID: C00157901 OrgName: Speakeasy Network DSL CanAllocate: Street: 810 Jorie Blvd City: Chicago State/Prov: IL Country: US PostalCode: 60523 RegDate: 2001-03-13 Updated: 2013-10-08 Source: ARIN
IP Addresses in this 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.