V6NetHandle: NET6-2001-410-9000-1 OrgID: NRCC-2 Parent: NET6-2001-410-1 NetName: FG-GIGAPOP NetRange: 2001:410:9000:: - 2001:410:90FF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: reallocation OriginAS: 21640 RegDate: 2003-05-29 Updated: 2012-07-09 NOCHandle: WFM-ARIN TechHandle: WFM-ARIN AbuseHandle: WFM-ARIN Source: ARIN OrgID: NRCC-2 OrgName: National Research Council of Canada CanAllocate: Street: 1200 Montreal Road Street: Building M60 City: Ottawa State/Prov: ON Country: CA PostalCode: K1A-0R6 RegDate: 1989-03-30 Updated: 2016-08-26 OrgTechHandle: WFM-ARIN OrgAdminHandle: ROG-ARIN OrgAbuseHandle: WFM-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.