inet6num: 2a02,4980,,/32 netname: NL-IX-NETWORKS-20110713 country: NL org: ORG-INBi1-RIPE admin-c: Cv2367-RIPE tech-c: Cv2367-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-lower: caspert-mnt mnt-routes: caspert-mnt notify: email@example.com created: 2011-07-13T12,12,46Z last-modified: 2016-04-14T10,45,15Z source: RIPE organisation: ORG-INBi1-RIPE org-name: IX Networks BV io org-type: LIR address: Horsterweg 18E address: 6199AC address: Maastricht-Airport address: NETHERLANDS phone: +31464789300 fax-no: +31464789301 e-mail: firstname.lastname@example.org abuse-c: AR16210-RIPE mnt-ref: caspert-mnt mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT admin-c: DD4753-RIPE admin-c: Cv2367-RIPE created: 2010-08-10T10,45,15Z last-modified: 2016-10-06T07,32,25Z source: RIPE person: Caspert vanDelft address: Horsterweg 18E 6199 AC Maastricht-Airport phone: +31 46 478900 nic-hdl: Cv2367-RIPE created: 2010-09-01T11,56,01Z last-modified: 2015-02-24T13,04,45Z source: RIPE mnt-by: caspert-mnt
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.