NetHandle: NET-63-210-50-0-1 OrgID: WASHI-2 Parent: NET-63-208-0-0-1 NetName: LVLT-WASHPOST-63-210-50 NetRange: 18.104.22.168 - 22.214.171.124 NetType: reassignment RegDate: 2008-06-20 Updated: 2008-06-20 Source: ARIN OrgID: WASHI-2 OrgName: Washington Post CanAllocate: Street: 1301 K St. N.W. City: Washington State/Prov: DC Country: US PostalCode: 20071 RegDate: 2003-08-12 Updated: 2017-04-26 OrgTechHandle: SHARI5-ARIN OrgAbuseHandle: SHARI5-ARIN OrgAdminHandle: SHARI5-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.