inet6num: 2a02,2330,,/29 netname: LV-TELEKOM-20100831 country: LV org: ORG-LA16-RIPE admin-c: JJ777-RIPE tech-c: JJ777-RIPE status: ALLOCATED-BY-RIR notify: Janis.Jansons@lattelecom.lv mnt-by: RIPE-NCC-HM-MNT mnt-by: LTK mnt-lower: LTK mnt-routes: LTK created: 2015-01-23T12,16,57Z last-modified: 2016-12-05T10,43,14Z source: RIPE organisation: ORG-LA16-RIPE org-name: SIA Lattelekom org-type: LIR address: Dzirnavu Street 105 address: LV-1011 address: Riga address: LATVIA phone: +37167051393 fax-no: +37167324736 e-mail: Janis.Jansons@lattelecom.lv admin-c: LTC777-RIPE admin-c: JJ777-RIPE admin-c: ZZ666-RIPE abuse-c: LTC777-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: LTK mnt-by: RIPE-NCC-HM-MNT mnt-by: LTK created: 2004-04-17T11,38,25Z last-modified: 2016-06-01T10,30,12Z source: RIPE person: Janis Jansons address: SIA "Lattelekom" address: 9. Citadeles Str. address: Riga,LV-1002 mnt-by: LTK phone: +371 9420819 e-mail: Janis.Jansons@lattelecom.lv nic-hdl: JJ777-RIPE created: 2001-11-27T15,00,24Z last-modified: 2010-09-29T05,28,58Z source: RIPE route6: 2a02,2330,,/29 origin: AS12578 mnt-by: LTK created: 2016-12-05T10,48,46Z last-modified: 2016-12-05T10,48,46Z 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.