V6NetHandle: NET6-2610-98-1 OrgID: OPFA Parent: NET6-2610-1 NetName: OPENFACE NetRange: 2610:98:: - 2610:98:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation RegDate: 2006-06-15 Updated: 2012-03-02 NOCHandle: NOC1454-ARIN TechHandle: NETWO445-ARIN AbuseHandle: NETWO446-ARIN Source: ARIN OrgID: OPFA OrgName: Openface Inc. CanAllocate: Street: 3445 av du Parc City: Montreal State/Prov: QC Country: CA PostalCode: H2X-2H6 RegDate: 1998-08-13 Updated: 2008-10-04 OrgTechHandle: NETWO445-ARIN OrgAbuseHandle: NETWO446-ARIN OrgNOCHandle: NOC1454-ARIN OrgAdminHandle: HM157-ARIN Source: ARIN
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.