AS33070 · Rackspace Hosting
NetHandle: NET-66-216-121-0-1 OrgID: C01952433 Parent: NET-66-216-64-0-1 NetName: RSPC-12142062467129074 NetRange: 18.104.22.168 - 22.214.171.124 NetType: reassignment RegDate: 2008-06-24 Updated: 2008-06-24 Source: ARIN OrgID: C01952433 OrgName: MailTrust CanAllocate: Street: 755 University City Blvd City: Blacksburg State/Prov: VA Country: US PostalCode: 24060 RegDate: 2008-06-24 Updated: 2011-03-19 Source: ARIN
IP address subranges within this IP range
What are IP address ranges?
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.