V6NetHandle: NET6-2605-1900-1 OrgID: TRUVI Parent: NET6-2600-1 NetName: TRUVISTAIPV6 NetRange: 2605:1900:: - 2605:1900:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 12208 RegDate: 2011-06-06 Updated: 2012-02-24 Source: ARIN OrgID: TRUVI OrgName: TruVista Communications CanAllocate: Street: 112 York Rd. City: Chester State/Prov: SC Country: US PostalCode: 29706 Comment: http://www.truvista.net RegDate: 2008-02-29 Updated: 2017-01-28 OrgAdminHandle: NJM2-ARIN OrgAbuseHandle: NJM2-ARIN OrgTechHandle: NJM2-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.