inet6num: 2a02,438,,/32 netname: DE-CYBERWAYS-20080528 country: DE org: ORG-cIG2-RIPE admin-c: WAYS1-RIPE tech-c: WAYS1-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: CWAYS-MNT mnt-routes: CWAYS-MNT notify: firstname.lastname@example.org created: 2008-05-28T10,18,27Z last-modified: 2017-07-14T07,25,01Z source: RIPE organisation: ORG-cIG2-RIPE org-name: cyberways Informationsdienste GmbH org-type: LIR address: Beim Glaspalast 1 address: 86153 address: Augsburg address: GERMANY phone: +49821720420 fax-no: +498217204242 e-mail: email@example.com abuse-c: AR14538-RIPE admin-c: JB102-RIPE mnt-ref: CWAYS-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: CWAYS-MNT created: 2004-04-17T11,06,25Z last-modified: 2017-07-14T07,25,01Z source: RIPE role: cyberways Hostmaster address: cyberways Informationsdienste GmbH address: Beim Glaspalast 1 address: D-86153 Augsburg address: Germany phone: +49 821 72042 0 fax-no: +49 821 72042 42 e-mail: firstname.lastname@example.org admin-c: JB102-RIPE tech-c: JB102-RIPE nic-hdl: WAYS1-RIPE mnt-by: CWAYS-MNT abuse-mailbox: email@example.com created: 1970-01-01T00,00,00Z last-modified: 2013-05-28T10,05,42Z source: RIPE route6: 2a02,438,,/32 descr: cyberways IPv6 origin: AS13132 mnt-by: CWAYS-MNT created: 2008-05-29T10,11,29Z last-modified: 2008-05-29T10,11,29Z 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.