2001:67c:2c54::/48 - MORAv6
inet6num: 2001,67c,2c54,,/48 netname: MORAv6 country: SE org: ORG-ABUS1323-RIPE sponsoring-org: ORG-RESI1-RIPE admin-c: MORO3-RIPE tech-c: MORO3-RIPE status: ASSIGNED PI notify: email@example.com mnt-by: RIPE-NCC-END-MNT mnt-by: RESILANS-MNT mnt-by: MORA-MNT mnt-by: TE53347-MNT mnt-routes: LIDNET-LIR mnt-domains: RESILANS-MNT created: 2014-11-13T12,55,17Z last-modified: 2016-04-14T10,52,38Z source: RIPE organisation: ORG-ABUS1323-RIPE org-name: Mora kommun org-type: OTHER address: SE-792 80 Mora address: Sweden e-mail: firstname.lastname@example.org abuse-c: ABUS2824-RIPE mnt-ref: RESILANS-MNT mnt-by: RESILANS-MNT created: 2013-03-14T13,51,14Z last-modified: 2016-08-12T11,03,03Z source: RIPE role: Mora Role address: Mora kommun e-mail: email@example.com nic-hdl: MORO3-RIPE admin-c: mitt1-ripe admin-c: BJEL2-RIPE admin-c: MAGR6-RIPE tech-c: mitt1-ripe tech-c: BJEL2-RIPE tech-c: MAGR6-RIPE mnt-by: MORA-MNT created: 2014-10-31T13,38,20Z last-modified: 2014-10-31T13,40,32Z source: RIPE route6: 2001,67c,2c54,,/48 descr: MORA KOMMUN origin: AS13189 mnt-by: LIDNET-LIR created: 2014-11-25T06,46,21Z last-modified: 2014-11-25T06,46,21Z 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.