V6NetHandle: NET6-2605-7E00-1 OrgID: ENVEN Parent: NET6-2600-1 NetName: NET6-1 NetRange: 2605:7E00:: - 2605:7E00:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 12042 RegDate: 2011-01-05 Updated: 2012-03-02 AbuseHandle: ENVEN-ARIN TechHandle: ETS18-ARIN NOCHandle: NOC1628-ARIN Source: ARIN OrgID: ENVEN OrgName: Enventis Telecom Inc. CanAllocate: Street: 21 West Superior St. Street: Suite 200 City: Duluth State/Prov: MN Country: US PostalCode: 55802 RegDate: 2007-11-14 Updated: 2017-01-28 OrgTechHandle: ANDER327-ARIN OrgNOCHandle: NOC1628-ARIN OrgAbuseHandle: ENVEN-ARIN OrgTechHandle: ETS18-ARIN OrgAdminHandle: KO116-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.