V6NetHandle: NET6-2620-124-1000-1 OrgID: DCL-81 Parent: NET6-2620-1 NetName: DAO-V6 NetRange: 2620:124:1000:: - 2620:124:100F:FFFF:FFFF:FFFF:FFFF:FFFF NetType: assignment OriginAS: 55088, 12161, 10255 RegDate: 2015-12-08 Updated: 2016-01-21 Source: ARIN OrgID: DCL-81 OrgName: dao Consulting, LLC CanAllocate: Street: 229 Terry St City: Longmont State/Prov: CO Country: US PostalCode: 80501 RegDate: 2010-09-28 Updated: 2017-02-14 OrgTechHandle: DAOOP-ARIN OrgAdminHandle: DAO-ARIN OrgAbuseHandle: DAOOP-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.