inet6num: 2a06,7e80,4,,/48 geoloc: 55.715411438562526 37.71623611450195 netname: UK-UAONLINE-IPIPE-01 descr: allocation for ipipe.ru country: RU admin-c: EA2-RIPE tech-c: EA2-RIPE status: AGGREGATED-BY-LIR assignment-size: 64 mnt-by: uaonline notify: firstname.lastname@example.org mnt-routes: DN-MNT created: 2015-09-25T16,27,44Z last-modified: 2015-09-25T16,27,44Z source: RIPE person: Eugene Arista address: London, UK phone: +4401202806130 fax-no: +4401202806130 nic-hdl: EA2-RIPE e-mail: email@example.com created: 2009-05-09T18,59,43Z last-modified: 2014-02-24T14,44,12Z source: RIPE mnt-by: uaonline route6: 2a06,7e80,4,,/48 descr: iPipe network in Dinet origin: AS12695 mnt-by: DN-MNT created: 2015-09-28T13,48,42Z last-modified: 2015-09-28T13,48,42Z 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.