2a03:c3c0::/32 - FR-DINHOSTING-20130111
inet6num: 2a03,c3c0,,/32 netname: FR-DINHOSTING-20130111 country: FR org: ORG-DS110-RIPE admin-c: LD3980-RIPE tech-c: LD3980-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: DINHOSTING-MNT mnt-routes: DINHOSTING-MNT mnt-routes: NERIM-MNT notify: firstname.lastname@example.org mnt-domains: DINHOSTING-MNT created: 2013-01-11T10,04,21Z last-modified: 2016-09-22T06,38,11Z source: RIPE organisation: ORG-DS110-RIPE org-name: Din'Ovation SARL org-type: LIR address: 14 ter rue FRINGON address: 40220 address: TARNOS address: FRANCE phone: +33974534029 fax-no: +33974534030 e-mail: email@example.com admin-c: LD3980-RIPE mnt-ref: LD25049-MNT mnt-ref: DINHOSTING-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: DINHOSTING-MNT abuse-mailbox: firstname.lastname@example.org abuse-c: DN2828-RIPE created: 2013-01-09T12,20,29Z last-modified: 2016-09-22T06,38,19Z source: RIPE person: Laurent DOLOSOR address: 14 ter rue FRINGON address: 40220 TARNOS phone: +33.974534029 e-mail: email@example.com nic-hdl: LD3980-RIPE mnt-by: LD25049-MNT created: 2013-01-09T12,41,51Z last-modified: 2013-01-09T12,41,52Z source: RIPE route6: 2a03,c3c0,,/32 descr: DINHOSTING-2A03-C3C0 origin: AS13193 mnt-by: NERIM-MNT created: 2013-01-28T15,02,42Z last-modified: 2013-01-28T15,02,42Z 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.