NetHandle: NET-164-159-0-0-1 OrgID: UFWSIH Parent: NET-164-0-0-0-0 NetName: FWS-NET NetRange: 18.104.22.168 - 22.214.171.124 NetType: assignment OriginAS: 19143 Comment: http://www.fws.gov RegDate: 1993-03-19 Updated: 2009-11-10 AbuseHandle: USFWS-ARIN NOCHandle: USFWS-ARIN TechHandle: USFWS-ARIN Source: ARIN OrgID: UFWSIH OrgName: U.S. Fish and Wildlife Service IRM/BFO, HQ CanAllocate: Street: 755 Parfet St. Street: Suite 250 City: Lakewood State/Prov: CO Country: US PostalCode: 80215 RegDate: 1993-03-19 Updated: 2017-10-04 OrgTechHandle: USFWS-ARIN OrgTechHandle: STINE21-ARIN OrgAbuseHandle: USFWS-ARIN OrgAdminHandle: HUERT5-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.