NetHandle: NET-205-56-0-0-1 OrgID: NNICN-1 Parent: NET-205-0-0-0-0 NetName: NETBLK-NIC-BLK1 NetRange: 184.108.40.206 - 220.127.116.11 NetType: assignment RegDate: 1998-05-18 Updated: 2011-06-21 Source: ARIN OrgID: NNICN-1 OrgName: Navy Network Information Center (NNIC) CanAllocate: Street: 2465 GUADALCANAL ROAD Street: BLDG 1265 City: VIRGINIA BEACH State/Prov: VA Country: US PostalCode: 23459 RegDate: 2006-09-21 Updated: 2011-08-17 OrgAbuseHandle: REGIS10-ARIN OrgAdminHandle: REGIS10-ARIN OrgTechHandle: REGIS10-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.