inet6num: 2a02,17e8,,/32 netname: RU-LINKEY-20100624 country: RU org: ORG-LL4-RIPE admin-c: LNA1-RIPE tech-c: LNA1-RIPE status: ALLOCATED-BY-RIR notify: firstname.lastname@example.org notify: email@example.com mnt-by: RIPE-NCC-HM-MNT mnt-by: LINKEY-MNT mnt-lower: LINKEY-MNT mnt-routes: LINKEY-MNT created: 2010-06-24T14,14,48Z last-modified: 2016-08-03T13,54,20Z source: RIPE organisation: ORG-LL4-RIPE org-name: Linkey Ltd org-type: LIR address: Krasnogvardeiskiy per. 23, litera K, office 64H address: 197342 address: Saint-Petersburg address: RUSSIAN FEDERATION phone: +78123477454 fax-no: +78123477739 e-mail: firstname.lastname@example.org admin-c: DSP10-RIPE admin-c: SFX-RIPE admin-c: IB68-RIPE tech-c: LNA1-RIPE abuse-c: LNA1-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: LINKEY-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: LINKEY-MNT created: 2004-04-17T11,54,39Z last-modified: 2016-08-03T13,54,19Z source: RIPE role: Linkey Network Administrator address: 8, Beloostrovskaya str., Office 1222 address: Saint-Petersburg address: Russia abuse-mailbox: email@example.com phone: +7 812 3477454 fax-no: +7 812 3477739 e-mail: firstname.lastname@example.org admin-c: IB68-RIPE mnt-by: LINKEY-MNT tech-c: IB68-RIPE tech-c: DSP10-RIPE nic-hdl: LNA1-RIPE notify: email@example.com created: 2002-06-19T16,03,13Z last-modified: 2014-10-15T05,22,48Z source: RIPE route6: 2a02,17e8,,/32 descr: ITSP LINKEY origin: AS13002 mnt-by: LINKEY-MNT mnt-routes: LINKEY-MNT created: 2011-07-05T09,29,02Z last-modified: 2011-07-22T09,32,19Z 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.