V6NetHandle: NET6-2606-6800-1 OrgID: VOL-7 Parent: NET6-2600-1 NetName: VXCHNGE-V6-01 NetRange: 2606:6800:: - 2606:6800:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 1277 RegDate: 2012-10-04 Updated: 2016-12-07 Source: ARIN OrgID: VOL-7 OrgName: vXchnge Operating, LLC CanAllocate: Street: 1501 W. Cleveland St. City: Tampa State/Prov: FL Country: US PostalCode: 33606 RegDate: 2014-07-25 Updated: 2017-01-28 OrgAbuseHandle: ABUSE5313-ARIN OrgNOCHandle: NOC31972-ARIN OrgAdminHandle: NOC31972-ARIN OrgTechHandle: NOC31972-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.