inet6num: 2a07,8500,,/32 netname: FOM-CUST-ALLOC country: NL admin-c: DG11973-RIPE tech-c: DG11973-RIPE status: ALLOCATED-BY-LIR mnt-by: AS1104-MNT created: 2016-05-31T12,01,44Z last-modified: 2016-05-31T12,03,49Z source: RIPE person: David Groep address: FOM-Nikhef address: Science Park 105 address: NL 1098 XG address: Amsterdam address: The Netherlands phone: +31205922179 nic-hdl: DG11973-RIPE mnt-by: DG11973-MNT created: 2016-05-24T11,45,36Z last-modified: 2016-05-28T11,30,31Z source: RIPE route6: 2a07,8500,,/29 origin: AS1104 mnt-by: AS1104-MNT created: 2016-05-24T09,42,08Z last-modified: 2016-05-24T09,42,08Z source: RIPE
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.