inet6num: 2a00,1840,,/32 netname: CH-INNET-20091209 country: CH org: ORG-INDS1-RIPE admin-c: DFI3-RIPE tech-c: DFI3-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: DFI-MNT mnt-routes: DFI-MNT notify: firstname.lastname@example.org created: 2009-12-09T14,22,08Z last-modified: 2017-04-04T11,45,03Z source: RIPE organisation: ORG-INDS1-RIPE org-name: DFI Service SA org-type: LIR address: 18, chemin des Aulx address: 1228 Plan-les-Ouates address: Geneva address: SWITZERLAND phone: +41 227062288 fax-no: +41 227948519 e-mail: email@example.com admin-c: DFI3-RIPE admin-c: ZF4-RIPE mnt-ref: DFI-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: DFI-MNT abuse-c: DFI6-RIPE created: 2004-04-17T11,02,34Z last-modified: 2017-04-05T08,38,11Z source: RIPE role: DFi Services SA address: Chemin des Aulx 18 address: CH-1228 Plan-Les-Ouates phone: +41 22 706 22 88 fax-no: +41 22 794 85 19 admin-c: ZF4-RIPE tech-c: GG15921-RIPE tech-c: JDFI1-RIPE tech-c: SDFI1-RIPE nic-hdl: DFI3-RIPE mnt-by: DFI-MNT e-mail: firstname.lastname@example.org abuse-mailbox: email@example.com created: 2001-12-27T18,23,29Z last-modified: 2017-03-31T07,18,10Z source: RIPE route6: 2a00,1840,,/32 descr: dfinet origin: AS12333 mnt-by: DFI-MNT created: 2015-10-08T13,55,18Z last-modified: 2015-10-08T13,55,18Z 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.