inet6num: 2a01,50c0,,/32 netname: DE-WEBHOSTONE-20120601 country: DE org: ORG-We1-RIPE admin-c: WONE2006-RIPE tech-c: WONE2006-RIPE status: ALLOCATED-BY-RIR notify: email@example.com mnt-by: RIPE-NCC-HM-MNT mnt-by: WebhostOne mnt-lower: MNT-WEBHOSTONE mnt-lower: WebhostOne mnt-routes: TXX-MNT created: 2012-06-01T06,39,35Z last-modified: 2016-09-15T16,25,22Z source: RIPE organisation: ORG-WE1-RIPE org-name: WebhostOne GmbH org-type: LIR address: Mumpferfaehrstrasse 68 address: 79713 address: BAD SAECKINGEN address: GERMANY phone: +497761926200 fax-no: +4977615561460 e-mail: firstname.lastname@example.org admin-c: MJ13134-RIPE abuse-c: WONE2006-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: WebhostOne mnt-by: RIPE-NCC-HM-MNT mnt-by: WebhostOne created: 2006-03-03T08,52,28Z last-modified: 2016-10-06T15,29,36Z source: RIPE role: WebhostOne Staff address: WebhostOne GmbH address: Mumpferfaehrstrasse 68 address: D-79713 Bad Saeckingen address: DE e-mail: email@example.com abuse-mailbox: firstname.lastname@example.org admin-c: AW2052-RIPE tech-c: AW2052-RIPE tech-c: MJ13134-RIPE nic-hdl: WONE2006-RIPE mnt-by: MNT-WEBHOSTONE created: 2006-05-16T08,54,23Z last-modified: 2015-01-09T13,50,36Z source: RIPE route6: 2a01,50c0,,/32 descr: DE-WEBHOSTONE-20120601 origin: AS12843 mnt-by: TXX-MNT mnt-by: MNT-WEBHOSTONE created: 2012-12-21T08,50,23Z last-modified: 2012-12-21T08,50,23Z 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.