2a03:ed80::/32 - RU-REAL-NET-20111114
inet6num: 2a03,ed80,,/32 netname: RU-REAL-NET-20111114 country: RU org: ORG-LA745-RIPE admin-c: RN3331-RIPE tech-c: RN3331-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: MNT-REAL-NET mnt-routes: MNT-REAL-NET notify: firstname.lastname@example.org created: 2014-11-11T13,29,28Z last-modified: 2017-04-07T09,37,56Z source: RIPE organisation: ORG-LA745-RIPE org-name: LLC Real-net org-type: LIR address: Prostornaya str., 1A address: 394008 address: Voronezh address: RUSSIAN FEDERATION abuse-c: RN3331-RIPE phone: +79204420334 e-mail: email@example.com mnt-ref: MNT-REAL-NET mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: MNT-REAL-NET created: 2014-06-20T09,07,36Z last-modified: 2017-04-07T09,38,03Z source: RIPE role: Real-Net NOC address: LLC Real-Net address: Prostornaya 1A address: Voronezh address: Russian Federation phone: +79204420334 fax-no: +79204420334 e-mail: firstname.lastname@example.org admin-c: NK3059-RIPE tech-c: NK3059-RIPE nic-hdl: RN3331-RIPE mnt-by: MNT-REAL-NET abuse-mailbox: email@example.com notify: firstname.lastname@example.org created: 2014-06-20T09,36,34Z last-modified: 2015-02-27T10,12,16Z source: RIPE route6: 2a03,ed80,,/32 descr: LLC Real-Net origin: AS13178 mnt-by: MNT-REAL-NET created: 2011-11-14T19,21,15Z last-modified: 2015-02-19T12,12,26Z 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.