V6NetHandle: NET6-2607-A500-1 OrgID: ICPL-3 Parent: NET6-2600-1 NetName: IO-IPV6-1 NetRange: 2607:A500:: - 2607:A500:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 12025 RegDate: 2012-06-14 Updated: 2012-06-14 Source: ARIN OrgID: ICPL-3 OrgName: IO Capital Princess, LLC CanAllocate: Street: 615 N. 48th St. City: Phoenix State/Prov: AZ Country: US PostalCode: 85008 RegDate: 2007-05-10 Updated: 2017-01-28 OrgTechHandle: NETWO1766-ARIN OrgAbuseHandle: NETWO7225-ARIN OrgAdminHandle: NETWO1766-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.