AS22773 Cox Communications Inc.
220.127.116.11/20 - NETBLK-AT-RDC-174-78-192-0
NetHandle: NET-174-78-192-0-1 OrgID: C02345718 Parent: NET-174-64-0-0-1 NetName: NETBLK-AT-RDC-174-78-192-0 NetRange: 18.104.22.168 - 22.214.171.124 NetType: reassignment RegDate: 2009-10-25 Updated: 2009-10-25 Source: ARIN OrgID: C02345718 OrgName: Cox Communications CanAllocate: Street: 1400 Lake Hearn Drive City: Atlanta State/Prov: GA Country: US PostalCode: 30319 RegDate: 2009-10-25 Updated: 2011-03-19 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.