inet6num: 2a02,16a0,,/32 netname: CH-AUTOMATICSERVERAG-20100603 country: CH org: ORG-ASA74-RIPE admin-c: OS2605-RIPE tech-c: OS2605-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-lower: MNT-AUTO-CH mnt-routes: MNT-INIT7-NOC mnt-routes: MNT-AUTO-CH notify: email@example.com notify: firstname.lastname@example.org created: 2010-06-03T13,00,59Z last-modified: 2016-04-14T10,01,51Z source: RIPE mnt-domains: MNT-AUTO-CH organisation: ORG-ASA74-RIPE org-name: Automatic Server AG org-type: LIR phone: +41715113111 fax-no: +41715113110 mnt-ref: RIPE-NCC-HM-MNT mnt-ref: MNT-AUTO-CH mnt-by: RIPE-NCC-HM-MNT created: 2010-06-03T09,35,33Z last-modified: 2016-10-06T15,35,23Z source: RIPE abuse-c: AR14268-RIPE address: Waldhofstr. 16a address: 9240 address: Uzwil address: SWITZERLAND e-mail: email@example.com admin-c: OS2605-RIPE person: Oliver Schad address: Waldhofstr. 16a address: 9240 Uzwil address: Switzerland phone: +41715113111 e-mail: firstname.lastname@example.org nic-hdl: OS2605-RIPE mnt-by: OS92721-MNT created: 2011-02-10T13,23,12Z last-modified: 2011-02-10T13,23,13Z source: RIPE route6: 2a02,16a0,,/32 descr: Automatic Server AG origin: AS13030 mnt-by: MNT-INIT7-NOC created: 2010-11-29T13,29,18Z last-modified: 2010-11-29T13,29,18Z 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.