AS22284 Department of the Interior, Office of theSecretary
18.104.22.168/16 - GEODEN
NetHandle: NET-136-177-0-0-1 OrgID: USGS-1 Parent: NET-136-0-0-0-0 NetName: GEODEN NetRange: 22.214.171.124 - 126.96.36.199 NetType: assignment RegDate: 1989-09-12 Updated: 2008-04-04 Source: ARIN OrgID: USGS-1 OrgName: United States Geological Survey CanAllocate: Street: 12201 Sunrise Valley Drive City: Reston State/Prov: VA Country: US PostalCode: 20192 RegDate: 1989-09-12 Updated: 2015-04-15 OrgTechHandle: HOSTM550-ARIN OrgAdminHandle: HOSTM550-ARIN OrgAbuseHandle: HOSTM550-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.