inet6num: 2a02,358,,/32 netname: DE-LYNET-20080519 country: DE org: ORG-LK1-RIPE admin-c: ML27-RIPE tech-c: LYNT1-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: LYNET-MNT mnt-routes: LYNET-MNT mnt-domains: LYNET-MNT notify: email@example.com created: 2008-05-14T07,49,31Z last-modified: 2016-10-11T09,48,04Z source: RIPE organisation: ORG-LK1-RIPE org-name: LyNet Kommunikation org-type: LIR address: Niels-Bohr-Ring 15 address: D-23568 address: Luebeck address: GERMANY phone: +49 451 6131 0 fax-no: +49 451 6131 333 e-mail: firstname.lastname@example.org admin-c: ML27-RIPE mnt-ref: LYNET-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: LYNET-MNT abuse-c: LYNT2-RIPE created: 2004-04-17T11,09,44Z last-modified: 2016-10-11T09,48,11Z source: RIPE person: LYNET Hostmaster address: LYNET Kommunikation address: Niels-Bohr-Ring 15 address: D-23568 Luebeck address: Germany phone: +49 451 6131 0 fax-no: +49 451 6131 333 e-mail: email@example.com nic-hdl: LYNT1-RIPE mnt-by: LYNET-MNT created: 2001-12-17T12,45,56Z last-modified: 2013-11-03T11,44,22Z source: RIPE person: Matthias Lohmann address: LYNET Kommunikation address: Niels-Bohr-Ring 15 address: D-23568 Luebeck address: Germany phone: +49 451 6131 0 fax-no: +49 451 6131 333 e-mail: firstname.lastname@example.org nic-hdl: ML27-RIPE mnt-by: LYNET-MNT created: 2001-11-15T16,33,07Z last-modified: 2013-11-03T11,43,25Z source: RIPE route6: 2a02,358,,/32 descr: LYNET Kommunikation origin: AS12822 mnt-by: LYNET-MNT created: 2009-10-13T14,48,42Z last-modified: 2009-10-13T14,48,42Z 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.