inet6num: 2a02,4880,,/32 netname: FI-OTAVERKKO-20110713 country: FI org: ORG-OO1-RIPE admin-c: OH19-RIPE tech-c: OH19-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: OTAVERKKO-MNT mnt-routes: OTAVERKKO-MNT notify: firstname.lastname@example.org created: 2011-07-13T09,49,00Z last-modified: 2017-01-10T12,46,53Z source: RIPE organisation: ORG-OO1-RIPE org-name: Otaverkko Oy org-type: LIR address: Metsanneidonkuja 6 address: FI-02130 address: ESPOO address: FINLAND phone: +358 207 42 43 44 fax-no: +358 207 42 43 40 e-mail: email@example.com admin-c: OH19-RIPE admin-c: JH700-RIPE admin-c: MT13419-RIPE admin-c: KS1723-RIPE admin-c: NE15-RIPE admin-c: TK3180 mnt-ref: OTAVERKKO-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: OTAVERKKO-MNT abuse-c: AC24108-RIPE created: 2004-04-17T11,20,18Z last-modified: 2017-01-10T12,47,03Z source: RIPE person: Otaverkko Hostmaster address: Otaverkko Oy address: Metsanneidonkuja 6 address: FI-02130 ESPOO address: FINLAND e-mail: firstname.lastname@example.org abuse-mailbox: email@example.com phone: +358 207 42 43 44 fax-no: +358 207 42 43 40 nic-hdl: OH19-RIPE mnt-by: OTAVERKKO-MNT created: 2005-12-19T13,26,42Z last-modified: 2009-09-17T05,36,02Z source: RIPE route6: 2a02,4880,,/32 descr: Otaverkko IPv6 origin: AS12630 mnt-by: OTAVERKKO-MNT created: 2012-05-30T11,42,27Z last-modified: 2012-05-30T11,42,27Z 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.