inet6num: 2a03,52a0,,/32 netname: DE-SIMPLETHINGS-20150910 country: DE org: ORG-SG183-RIPE admin-c: SW4791-RIPE tech-c: SW4791-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-lower: de-simplethings-1-mnt mnt-routes: de-simplethings-1-mnt created: 2015-09-10T11,50,44Z last-modified: 2016-04-14T09,43,49Z source: RIPE organisation: ORG-SG183-RIPE org-name: SimpleThings GmbH org-type: LIR address: Münsterstraße 1 address: 53111 address: Bonn address: GERMANY e-mail: email@example.com admin-c: SW4791-RIPE tech-c: SW4791-RIPE abuse-c: AR33446-RIPE mnt-ref: de-simplethings-1-mnt mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT created: 2015-09-09T13,06,22Z last-modified: 2016-10-06T15,51,30Z source: RIPE phone: +49 228 944920 0 person: Sebastian Wahl address: Münsterstraße 1 address: 53111 address: Bonn address: GERMANY phone: +49 228 944920 0 nic-hdl: SW4791-RIPE mnt-by: de-simplethings-1-mnt created: 2015-09-09T13,06,21Z last-modified: 2015-09-09T13,06,22Z source: RIPE route6: 2a03,52a0,,/32 descr: IPv6 SimpleThings GmbH origin: AS12557 mnt-by: de-simplethings-1-mnt created: 2015-10-21T20,26,00Z last-modified: 2015-10-21T20,26,00Z 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.