V6NetHandle: NET6-2606-5200-1 OrgID: OTL-22 Parent: NET6-2600-1 NetName: ONLINE-TECH NetRange: 2606:5200:: - 2606:5200:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 32477 RegDate: 2011-02-07 Updated: 2014-05-30 Source: ARIN OrgID: OTL-22 OrgName: Online Tech, LLC CanAllocate: Street: 305 E. Eisenhower City: Ann Arbor State/Prov: MI Country: US PostalCode: 48108 RegDate: 2014-03-26 Updated: 2017-02-14 OrgTechHandle: ARBOG2-ARIN OrgAdminHandle: BRADL109-ARIN OrgTechHandle: HORNB18-ARIN OrgTechHandle: RCS75-ARIN OrgTechHandle: DSH210-ARIN OrgNOCHandle: ZO25-ARIN OrgTechHandle: ZO25-ARIN OrgAbuseHandle: ABUSE5874-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.