inet6num: 2a00,e6a0,,/32 netname: HU-ISZT-20130919 country: HU org: ORG-IISH1-RIPE admin-c: BM6276-RIPE admin-c: JZ1170-RIPE tech-c: JZ1170-RIPE status: ALLOCATED-BY-RIR notify: firstname.lastname@example.org mnt-by: RIPE-NCC-HM-MNT mnt-by: ISZT-MNT mnt-lower: ISZT-MNT mnt-routes: ISZT-MNT mnt-domains: ISZT-MNT created: 2013-09-19T13,58,13Z last-modified: 2016-05-30T11,57,12Z source: RIPE organisation: ORG-IISH1-RIPE org-name: ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT. org-type: LIR address: Victor Hugo utca 18-22. address: 1132 address: Budapest address: HUNGARY phone: +3612380115 e-mail: email@example.com abuse-c: IA3309-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: ISZT-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: ISZT-MNT created: 2012-03-22T15,19,31Z last-modified: 2016-05-30T11,57,11Z source: RIPE person: Balazs Martos address: ISZT Nonprofit Kft. address: Victor Hugo utca 18-22. address: 1132 Budapest address: Hungary phone: +36 1 238 0115 nic-hdl: BM6276-RIPE mnt-by: ISZT-MNT created: 2012-04-03T09,45,43Z last-modified: 2012-04-03T09,45,43Z source: RIPE person: Janos Zsako address: ISZT Nonprofit Kft. address: Victor Hugo utca 18-22. address: 1132 Budapest address: Hungary phone: +36 1 238 0115 e-mail: firstname.lastname@example.org nic-hdl: JZ1170-RIPE mnt-by: ISZT-MNT created: 2012-04-03T09,21,56Z last-modified: 2012-04-03T09,21,57Z source: RIPE route6: 2a00,e6a0,,/32 descr: HU-ISZT-20130919 origin: AS12303 mnt-by: ISZT-MNT created: 2013-10-08T13,39,48Z last-modified: 2013-10-08T13,39,48Z 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.