V6NetHandle: NET6-2606-7800-1 OrgID: RECOL Parent: NET6-2600-1 NetName: RECOL-LLC-2 NetRange: 2606:7800:: - 2606:7800:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11598 RegDate: 2010-05-21 Updated: 2012-02-24 NOCHandle: SYSAD16-ARIN TechHandle: JE284-ARIN AbuseHandle: SYSAD16-ARIN Source: ARIN OrgID: RECOL OrgName: Recol CanAllocate: Street: 4 Pin Oak Drive City: Branford State/Prov: CT Country: US PostalCode: 06405 RegDate: 2002-02-08 Updated: 2017-07-11 OrgAdminHandle: SUPPO1963-ARIN OrgAbuseHandle: SYSAD16-ARIN OrgTechHandle: SYSAD16-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.