inet6num: 2a01,7440,,/32 netname: RU-NETLINE-20120621 country: RU org: ORG-NL6-RIPE admin-c: AINT-RIPE tech-c: AINT-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: NTLR mnt-routes: NTLR notify: email@example.com mnt-domains: NTLR created: 2012-06-21T13,16,19Z last-modified: 2016-12-19T12,01,54Z source: RIPE organisation: ORG-NL6-RIPE org-name: CJSC Netline org-type: LIR address: Raspletina str. 5, building 7 address: 123060 address: Moscow address: RUSSIAN FEDERATION phone: +7 495 7847616 fax-no: +7 495 7847644 e-mail: firstname.lastname@example.org mnt-ref: NTLR mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: NTLR admin-c: VM787-RIPE admin-c: AINT-RIPE abuse-c: NTLR-RIPE created: 2004-04-17T11,55,52Z last-modified: 2016-12-19T12,02,04Z source: RIPE person: ALEXANDER B IGNATENKO address: Raspletina str. 5, building 7, 4 floor, Moscow, Russia remarks: phone,+7 495 7847616 phone: +7 495 7847616 nic-hdl: AINT-RIPE mnt-by: NTLR notify: email@example.com e-mail: firstname.lastname@example.org created: 2003-10-21T06,52,05Z last-modified: 2007-10-11T07,31,04Z source: RIPE remarks: modified for Russian phone area changes route6: 2a01,7440,,/32 descr: IPv6 Route for NetLine origin: AS12739 mnt-by: NTLR created: 2012-06-22T07,46,38Z last-modified: 2012-06-22T07,46,38Z 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.