NetHandle: NET-162-138-0-0-1 OrgID: USEC Parent: NET-162-0-0-0-0 NetName: USSEC NetRange: 220.127.116.11 - 18.104.22.168 NetType: assignment RegDate: 1992-12-03 Updated: 2003-07-07 Source: ARIN OrgID: USEC OrgName: U.S. Securities & Exchange Commission CanAllocate: Street: 100 F Street Street: Mail Stop 2606 City: Washington State/Prov: DC Country: US PostalCode: 20549-0001 Comment: http://www.sec.gov RegDate: 1992-12-03 Updated: 2015-09-25 OrgAdminHandle: ETR9-ARIN OrgTechHandle: COPS-ARIN OrgAbuseHandle: COPS-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.