inet6num: 2a06,1287,40,,/48 netname: BY-XHOSTFIRE-20151209 descr: Business Network JV country: BY geoloc: 53.872493 27.565803 admin-c: XTT1-RIPE org: ORG-XL26-RIPE tech-c: XTT1-RIPE status: ALLOCATED-BY-LIR mnt-by: MNT-XHOSTFIRE mnt-lower: MNT-XHOSTFIRE mnt-routes: AS12406-MNT language: RU created: 2015-12-01T19,00,39Z last-modified: 2015-12-28T06,27,52Z source: RIPE organisation: ORG-XL26-RIPE org-name: XHostFire Limited org-type: OTHER address: US e-mail: email@example.com abuse-c: AR34602-RIPE mnt-ref: MNT-XHOSTFIRE mnt-by: MNT-XHOSTFIRE created: 2015-12-09T06,44,10Z last-modified: 2016-01-02T03,39,59Z source: RIPE role: XHOSTFIRE Technical Team address: US e-mail: firstname.lastname@example.org nic-hdl: XTT1-RIPE mnt-by: MNT-XHOSTFIRE created: 2015-04-30T13,29,32Z last-modified: 2015-12-09T06,33,45Z source: RIPE route6: 2a06,1287,40,,/48 descr: Beros origin: AS12406 mnt-by: AS12406-MNT created: 2015-12-21T18,17,41Z last-modified: 2015-12-21T18,17,41Z 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.