inet6num: 2001,14f8,,/32 netname: DE-NEPUSTILNET-20030716 country: DE org: ORG-DNCG1-RIPE admin-c: UN5 tech-c: UN5 notify: email@example.com status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: NEPUSTIL-NET-MNT mnt-routes: NEPUSTIL-NET-MNT created: 2003-07-16T11,20,08Z last-modified: 2017-01-27T18,43,19Z source: RIPE organisation: ORG-DNCG1-RIPE org-name: Dr.-Ing. Nepustil & Co. GmbH org-type: LIR address: Rathausstrasse 3 address: 72658 address: Bempflingen address: GERMANY phone: +49 7123 930060 fax-no: +49 7123 9300699 e-mail: Hostmaster@Nepustil.NET admin-c: UN5 admin-c: KJ2-RIPE mnt-ref: NEPUSTIL-NET-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: NEPUSTIL-NET-MNT abuse-c: NNAB1-RIPE created: 2004-04-17T11,10,34Z last-modified: 2017-01-27T18,43,20Z source: RIPE person: Ulrich Nepustil address: Dr.-Ing. Nepustil & Co. GmbH address: Rathausstr. 3 address: D-72658 Bempflingen address: Germany phone: +49 7123 93006-0 fax-no: +49 7123 93006-99 e-mail: firstname.lastname@example.org nic-hdl: UN5 mnt-by: NEPUSTIL-NET-MNT created: 1970-01-01T00,00,00Z last-modified: 2012-05-25T20,44,16Z source: RIPE route6: 2001,14f8,,/32 descr: Nepustil.net IPv6 origin: AS12502 mnt-by: NEPUSTIL-NET-MNT created: 2007-01-22T10,07,38Z last-modified: 2007-01-22T10,07,38Z 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.