V6NetHandle: NET6-2606-C380-1 OrgID: NETSVI Parent: NET6-2600-1 NetName: NETSVI6 NetRange: 2606:C380:: - 2606:C380:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11440 RegDate: 2015-12-04 Updated: 2015-12-04 Source: ARIN OrgID: NETSVI OrgName: Netsville, Inc. CanAllocate: Street: 72 Cascade Drive Street: 2nd floor City: Rochester State/Prov: NY Country: US PostalCode: 14614 Comment: For abuse issues please send email to ABUSE@NETSVILLE.COM only. RegDate: 2000-04-07 Updated: 2011-09-24 OrgTechHandle: MEB3-ARIN OrgAdminHandle: MEB3-ARIN OrgAbuseHandle: MEB3-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.