NetHandle: NET-204-17-170-0-1 OrgID: UGS-2 Parent: NET-204-0-0-0-0 NetName: GEOVAR NetRange: 18.104.22.168 - 22.214.171.124 NetType: assignment RegDate: 1994-06-14 Updated: 2012-03-02 TechHandle: HOSTM550-ARIN Source: ARIN OrgID: UGS-2 OrgName: U.S. Geological Survey CanAllocate: Street: 12201 Sunrise Valley Drive City: Reston State/Prov: VA Country: US PostalCode: 20192 RegDate: 1988-04-14 Updated: 2015-04-15 OrgTechHandle: HOSTM550-ARIN OrgAdminHandle: HOSTM550-ARIN OrgAbuseHandle: HOSTM550-ARIN 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.