inet6num: 2001,67c,12f0,,/48 netname: DE-TELEMAXX-20150512 country: DE org: ORG-SBG5-RIPE sponsoring-org: ORG-TTG2-RIPE admin-c: TM7759-RIPE tech-c: TM7759-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: TXX-MNT created: 2015-05-12T08,50,56Z last-modified: 2016-04-14T10,27,19Z source: RIPE organisation: ORG-SBG5-RIPE org-name: Schoeck Bauteile GmbH org-type: OTHER address: Vimbucher Str. 2 address: D-76534 Baden-Baden e-mail: firstname.lastname@example.org abuse-c: AR28187-RIPE abuse-mailbox: email@example.com mnt-ref: TXX-MNT mnt-by: TXX-MNT admin-c: TM7759-RIPE tech-c: TM7759-RIPE created: 2014-06-25T07,26,39Z last-modified: 2014-11-17T22,35,01Z source: RIPE person: Tobias Mai address: Schoeck Bauteile GmbH address: Vimbucher Str. 2 address: D-76534 Baden-Baden address: DE phone: +49 7223 967218 fax-no: +49 7223 9677895 e-mail: firstname.lastname@example.org nic-hdl: TM7759-RIPE mnt-by: TXX-MNT created: 2014-06-25T07,25,36Z last-modified: 2014-12-15T12,27,05Z source: RIPE route6: 2001,67c,12f0,,/48 descr: Schoeck Bauteile GmbH descr: via TelemaxX TK origin: AS12843 mnt-by: TXX-MNT created: 2015-05-12T14,34,57Z last-modified: 2015-05-12T14,34,57Z 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.