General Info
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Whois Details
NetHandle: NET-161-51-0-0-1 OrgID: KBR-3 Parent: NET-161-0-0-0-0 NetName: KELLOGG-BROWN-ROOT-INC NetRange: 161.51.0.0 - 161.51.255.255 NetType: assignment RegDate: 1992-05-27 Updated: 2012-02-24 Source: ARIN OrgID: KBR-3 OrgName: KBR CanAllocate: Street: 4100 Clinton Drive City: Houston State/Prov: TX Country: US PostalCode: 77020 RegDate: 2004-11-15 Updated: 2011-12-09 OrgAdminHandle: ADMIN447-ARIN OrgTechHandle: TECHN193-ARIN OrgAbuseHandle: TECHN193-ARIN Source: ARIN
IP Addresses in this range
Details
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.