2001:67c:2570::/48 - LI-NEWSNETAG-20150727
inet6num: 2001,67c,2570,,/48 netname: LI-NEWSNETAG-20150727 country: LI org: ORG-PA311-RIPE sponsoring-org: ORG-NA474-RIPE admin-c: PARA2-RIPE admin-c: NAG24-RIPE tech-c: PARA2-RIPE tech-c: NAG24-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: MNT-NEWSNET mnt-by: MNT-PROSOLUTION created: 2015-07-27T11,26,59Z last-modified: 2016-04-14T09,48,24Z source: RIPE organisation: ORG-PA311-RIPE org-name: ProSolution AG descr: ProSolution AG org-type: OTHER address: ProSolution AG address: Kirchberg 101 address: 6733 Fontanella address: Austria e-mail: email@example.com abuse-c: AR29723-RIPE mnt-ref: MNT-PROSOLUTION mnt-by: MNT-PROSOLUTION created: 2009-03-27T10,51,34Z last-modified: 2014-11-17T22,44,00Z source: RIPE role: Newsnet AG Hostmaster address: Im alten Riet 153, Schaan, Liechtenstein e-mail: firstname.lastname@example.org admin-c: BS9142-RIPE tech-c: BS9142-RIPE nic-hdl: NAG24-RIPE mnt-by: MNT-NEWSNET abuse-mailbox: email@example.com created: 2011-11-25T10,50,59Z last-modified: 2016-09-29T07,22,18Z source: RIPE role: ProSolution AG Role Account address: ProSolution AG address: Kirchberg 101 address: 6733 Fontanella address: Austria e-mail: firstname.lastname@example.org admin-c: TK2811-RIPE tech-c: AB570-RIPE tech-c: MT7571-RIPE nic-hdl: PARA2-RIPE created: 2009-03-27T10,21,28Z last-modified: 2009-03-27T10,56,28Z source: RIPE mnt-by: MNT-PROSOLUTION route6: 2001,67c,2570,,/48 descr: ProSolution AG origin: AS13030 mnt-by: MNT-PROSOLUTION mnt-by: MNT-NEWSNET created: 2015-07-28T11,44,16Z last-modified: 2015-07-28T11,44,16Z 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.