inet6num: 2001,1498,,/32 netname: ES-TDATACORP-20030623 country: ES org: ORG-TDC1-RIPE admin-c: MOB6-RIPE tech-c: ECM4-RIPE tech-c: MOB6-RIPE status: ALLOCATED-BY-RIR notify: firstname.lastname@example.org mnt-by: RIPE-NCC-HM-MNT mnt-by: TDATANET-LIR mnt-lower: TDATANET-LIR mnt-routes: TDATANET-LIR created: 2003-06-23T12,51,17Z last-modified: 2016-05-30T15,10,41Z source: RIPE organisation: ORG-TDC1-RIPE org-name: Telefonica International Wholesale Services, SL org-type: LIR address: Distrito C, Oeste 3, planta 2. Ronda de la Comunicacion s/n. address: 28050 address: Madrid address: SPAIN phone: +914830543 e-mail: email@example.com admin-c: ECM4-RIPE admin-c: GR8890-RIPE admin-c: MOB6-RIPE admin-c: HNM15-RIPE admin-c: DDA27-RIPE abuse-c: TG171-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: TDATANET-LIR abuse-mailbox: firstname.lastname@example.org mnt-by: RIPE-NCC-HM-MNT mnt-by: TDATANET-LIR created: 2004-04-17T11,18,19Z last-modified: 2016-05-30T15,10,38Z source: RIPE person: Eva Carbon Malanda address: Telefonica Internacional Wholesale Services address: Distrito C address: Ronda de la comunicación s/n address: Edificio Oeste 3 - Planta 2 address: Madrid 20850 address: Spain phone: +34914830000 e-mail: email@example.com nic-hdl: ECM4-RIPE mnt-by: TDATANET-LIR created: 2005-12-05T11,52,32Z last-modified: 2016-11-18T09,10,00Z source: RIPE person: Marco Otero Bernardo address: Telefonica International Wholesale Services, S.L. address: Ronda de la Comunicación, s/n address: Madrid 28028 address: Spain phone: +34 91 483 0527 e-mail: firstname.lastname@example.org nic-hdl: MOB6-RIPE mnt-by: TDATANET-RR created: 2003-02-11T14,56,50Z last-modified: 2009-12-23T12,32,31Z source: RIPE route6: 2001,1498,,/32 descr: TIWS origin: AS12956 mnt-by: TDATANET-RR mnt-lower: TDATANET-RR mnt-routes: TDATANET-RR created: 2008-07-28T08,28,32Z last-modified: 2008-07-28T08,31,13Z 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.