2a00:7ee0:6::/48 - FR-LWS-20150429
inet6num: 2a00,7ee0,6,,/48 netname: FR-LWS-20150429 descr: LWS dedicated country: FR admin-c: DN3291-RIPE tech-c: DN3291-RIPE mnt-by: fr-lws-1-mnt status: ASSIGNED created: 2015-06-26T14,30,56Z last-modified: 2015-06-26T14,36,12Z source: RIPE mnt-routes: NERIM-MNT person: depredurand nicolas address: 2 rue jules ferry address: 88190 address: Golbey address: FRANCE phone: +33177623003 nic-hdl: DN3291-RIPE mnt-by: fr-lws-1-mnt created: 2015-04-22T14,27,35Z last-modified: 2015-04-22T14,27,36Z source: RIPE route6: 2a00,7ee0,6,,/48 descr: LWS-2A00-7EE0-6 origin: AS13193 mnt-by: NERIM-MNT created: 2016-03-10T17,15,02Z last-modified: 2016-03-10T17,15,02Z 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.