inet6num: 2001,4dd8,,/32 netname: NO-BROADNET-20051205 country: NO org: ORG-BNA1-RIPE admin-c: PCB-RIPE tech-c: PCB-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: BROADNET-NO-MNTNER mnt-lower: AS2116-MNT mnt-routes: AS2116-MNT notify: firstname.lastname@example.org created: 2005-12-05T09,01,19Z last-modified: 2017-09-30T07,38,57Z source: RIPE organisation: ORG-BNA1-RIPE org-name: Broadnet AS org-type: LIR address: Post box 1 address: 1330 address: Fornebu address: NORWAY phone: +4721550000 fax-no: +4721550001 e-mail: email@example.com abuse-c: AR16320-RIPE admin-c: BNH2-RIPE admin-c: PCB-RIPE mnt-ref: AS2116-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: BROADNET-NO-MNTNER created: 2004-04-17T11,44,38Z last-modified: 2017-09-30T07,43,01Z source: RIPE person: Peder Bach address: Fornebu phone: +47 47 46 04 46 e-mail: firstname.lastname@example.org nic-hdl: PCB-RIPE mnt-by: AS2116-MNT created: 2007-09-25T19,14,02Z last-modified: 2013-12-07T17,49,31Z source: RIPE route6: 2001,4dd8,,/32 descr: DG-NETWORK-IPV6 origin: AS13069 remarks: Send abuse notifications to email@example.com mnt-by: DATAGUARD-MNT created: 2011-01-14T14,56,52Z last-modified: 2011-01-14T14,56,52Z 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.