2001:67c:132c::/48 - SE-STRANGNAS
inet6num: 2001,67c,132c,,/48 netname: SE-STRANGNAS country: SE org: ORG-STRA2-RIPE admin-c: STRA4-RIPE tech-c: STRA4-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: RESILANS-MNT mnt-routes: RESILANS-MNT mnt-routes: LIDNET-LIR mnt-domains: RESILANS-MNT created: 2013-01-29T10,25,29Z last-modified: 2016-04-14T08,43,20Z source: RIPE sponsoring-org: ORG-RESI1-RIPE organisation: ORG-STRA2-RIPE org-name: Strangnas Kommun org-type: OTHER address: Strangnas Kommun address: S-645 21 Strangnas address: Sweden abuse-c: ABUS2068-RIPE e-mail: email@example.com admin-c: STRA4-RIPE mnt-by: RESILANS-MNT mnt-ref: RESILANS-MNT created: 2013-01-25T13,07,28Z last-modified: 2014-04-08T12,38,45Z source: RIPE role: Strangnas Kommun address: Strangnas Kommun address: S-645 21 Strangnas address: SWEDEN phone: +46152-29146 fax-no: +46152-29000 e-mail: firstname.lastname@example.org admin-c: chbe4-RIPE tech-c: NS3565-RIPE nic-hdl: STRA4-RIPE mnt-by: RESILANS-MNT created: 2013-01-25T13,04,44Z last-modified: 2013-01-25T13,04,44Z source: RIPE route6: 2001,67c,132c,,/48 descr: SE-STRANGNAES-KOMMUN-BLK origin: AS13189 mnt-by: LIDNET-LIR created: 2013-02-01T12,26,47Z last-modified: 2013-02-01T12,26,47Z 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.