V6NetHandle: NET6-2600-C04-E010-1 OrgID: C06243607 Parent: NET6-2600-C00-1 NetName: INAP-LAX014-NOVACOAST-IPV6-10930-132758 NetRange: 2600:C04:E010:: - 2600:C04:E010:FFFF:FFFF:FFFF:FFFF:FFFF NetType: reassignment Comment: rirCallout v1.07, Mon Oct 24 18:32:52 -0400 2016 RegDate: 2016-10-24 Updated: 2016-10-24 Source: ARIN OrgID: C06243607 OrgName: Private Customer CanAllocate: Street: Private Residence City: Santa Barbara State/Prov: CA Country: US PostalCode: 93101 Comment: created by rirCallout v1.07 for NET6-2600-C00-1 RegDate: 2016-10-24 Updated: 2016-10-24 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.