NetHandle: NET-165-83-0-0-1 OrgID: NPS-14 Parent: NET-165-0-0-0-0 NetName: NPS-NET NetRange: 184.108.40.206 - 220.127.116.11 NetType: assignment RegDate: 1993-04-28 Updated: 2003-11-18 TechHandle: GF129-ARIN Source: ARIN OrgID: NPS-14 OrgName: National Park Service CanAllocate: Street: Attn: WASO-NITC-NMP Street: 1201 Eye St NW City: Washington State/Prov: DC Country: US PostalCode: 20005 RegDate: 1993-04-28 Updated: 2014-10-08 OrgAdminHandle: NMP-ARIN OrgTechHandle: NMP-ARIN OrgAbuseHandle: NMP-ARIN OrgTechHandle: DOSTW1-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.