inet6num: 2001:67c:2bd0::/48 netname: SE-MORBYLANGA country: SE org: ORG-MORB1-RIPE sponsoring-org: ORG-RESI1-RIPE admin-c: KIJO1 tech-c: KIJO1 status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: RESILANS-MNT mnt-by: TE53347-MNT mnt-by: BORGHOLM mnt-routes: BORGHOLM mnt-routes: RESILANS-MNT mnt-domains: TE53347-MNT mnt-domains: BORGHOLM created: 2013-09-25T12:59:24Z last-modified: 2018-01-20T14:41:23Z source: RIPE organisation: ORG-MORB1-RIPE org-name: Morbylanga kommun org-type: OTHER abuse-c: ABUS2766-RIPE address: Morbylanga kommun address: S-386 80 Morbylanga address: Sweden e-mail: email@example.com admin-c: PN1378-RIPE mnt-by: RESILANS-MNT mnt-ref: RESILANS-MNT created: 2013-09-24T10:09:12Z last-modified: 2014-04-16T09:03:20Z source: RIPE person: Kim Johnsson address: Badhusgatan 17D address: 38732 Borgholm address: Sweden phone: +46 485 88217 e-mail: firstname.lastname@example.org nic-hdl: KIJO1 mnt-by: KIJO1 created: 2012-11-04T11:45:34Z last-modified: 2017-03-07T13:40:50Z source: RIPE route6: 2001:67c:2bd0::/48 descr: SE-MORBYLANGA_IP-Only origin: AS12552 mnt-by: IP-ONLY-MNT created: 2016-07-06T11:16:50Z last-modified: 2018-01-19T12:47:57Z source: RIPE mnt-routes: RESILANS-MNT route6: 2001:67c:2bd0::/48 descr: Morbylanga kommun origin: AS204847 mnt-by: RESILANS-MNT created: 2018-01-20T14:42:04Z last-modified: 2018-01-20T14:42:04Z 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.