inet6num: 2a02,2698,,/32 netname: RU-RAID-20101020 country: RU org: ORG-RA21-RIPE admin-c: RAID1-RIPE tech-c: RAID1-RIPE status: ALLOCATED-BY-RIR notify: firstname.lastname@example.org mnt-by: RIPE-NCC-HM-MNT mnt-by: RAID-MNT mnt-lower: RAID-MNT mnt-routes: RAID-MNT mnt-domains: RAID-MNT created: 2010-10-20T12,36,27Z last-modified: 2016-05-30T12,40,30Z source: RIPE organisation: ORG-RA21-RIPE org-name: JSC "ER-Telecom Holding" org-type: LIR address: str. Shosse Kosmonavtov, 111, bldg. 43, office 514 address: 614990 address: Perm address: RUSSIAN FEDERATION phone: +7 342 2462233 fax-no: +7 342 2195024 e-mail: email@example.com admin-c: SV6088-RIPE admin-c: ZEKE-RIPE admin-c: RAID1-RIPE admin-c: AAP113-RIPE admin-c: DNDY1-RIPE abuse-c: RAID1-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: RAID-MNT mnt-ref: ENFORTA-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: RAID-MNT created: 2004-04-17T11,56,55Z last-modified: 2016-05-30T12,42,16Z source: RIPE role: ER-Telecom ISP Contact Role address: JSC "ER-Telecom" address: 111, str. Shosse Kosmonavtov address: 614000 Perm address: Russian Federation phone: +7 342 2462233 fax-no: +7 342 2195024 e-mail: firstname.lastname@example.org abuse-mailbox: email@example.com remarks: 24/7 phone number, +7-342-2195-195 admin-c: DNDY1-RIPE tech-c: DNDY1-RIPE tech-c: ZEKE-RIPE tech-c: SV6088-RIPE tech-c: AAP113-RIPE nic-hdl: RAID1-RIPE notify: firstname.lastname@example.org mnt-by: RAID-MNT created: 2005-02-11T12,50,50Z last-modified: 2016-03-22T08,05,55Z 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.