V6NetHandle: NET6-2607-9000-1 OrgID: TZULO Parent: NET6-2600-1 NetName: TZULO NetRange: 2607:9000:: - 2607:9000:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 11878 RegDate: 2010-04-13 Updated: 2012-02-24 TechHandle: NOCTZ-ARIN AbuseHandle: ABUSE1633-ARIN NOCHandle: NOCTZ-ARIN Source: ARIN OrgID: TZULO OrgName: tzulo, inc. CanAllocate: Street: 2607 Charter Oak Drive City: Aurora State/Prov: IL Country: US PostalCode: 60502 Comment: http://www.tzulo.com RegDate: 2007-03-28 Updated: 2017-01-28 OrgAbuseHandle: ABUSE1633-ARIN OrgAdminHandle: NOCTZ-ARIN OrgTechHandle: NOCTZ-ARIN OrgNOCHandle: NOCTZ-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.