inet6num: 2a06,3380,,/29 netname: DE-HG-20150615 country: DE org: ORG-HGIG1-RIPE admin-c: SW4699-RIPE tech-c: SW4699-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: de-hg-1-mnt created: 2015-06-15T14,25,24Z last-modified: 2016-07-01T10,14,24Z source: RIPE organisation: ORG-HGIG1-RIPE org-name: Haus & Gross it.services GmbH org-type: LIR address: Heinrich-Barth-Strasse 28 address: 66115 address: Saarbruecken address: GERMANY phone: +49 681 96767 10 fax-no: +49 681 96767 67 e-mail: email@example.com admin-c: SW4699-RIPE tech-c: SW4699-RIPE abuse-c: AR32443-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: de-hg-1-mnt mnt-by: RIPE-NCC-HM-MNT mnt-by: de-hg-1-mnt created: 2015-06-10T14,09,10Z last-modified: 2016-07-01T10,14,23Z source: RIPE person: Sven Werdehausen address: Heinrich-Barth-Strasse 28 address: 66115 address: Saarbruecken address: GERMANY phone: +49 681 96767 10 nic-hdl: SW4699-RIPE mnt-by: de-hg-1-mnt created: 2015-06-10T14,09,09Z last-modified: 2015-06-10T14,09,10Z source: RIPE route6: 2a06,3380,,/29 descr: Haus & Gross it.services GmbH origin: AS12941 mnt-by: INTERSAAR-MNT created: 2015-06-18T10,15,28Z last-modified: 2015-06-18T10,15,28Z 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.