inet6num: 2001,14f7,,/32 netname: HELI-6-AS12355-8 descr: HeLi NET Telekommunikation GmbH & Co. KG descr: Hafenstrasse 80-82 descr: D-59067 Hamm descr: Germany country: DE admin-c: HAMM2-RIPE tech-c: HAMM2-RIPE status: ALLOCATED-BY-LIR mnt-by: AS12355-MNT mnt-lower: AS12355-MNT mnt-routes: AS12355-MNT mnt-domains: AS12355-MNT created: 2015-07-07T06,47,42Z last-modified: 2015-07-07T06,47,42Z source: RIPE role: Hamcom Hostmaster address: HeLi NET Telekommunikation GmbH & Co. KG address: Hafenstrasse 80-82 address: D-59067 Hamm address: Germany phone: +49 2381 874 4250 fax-no: +49 2381 874 1007 e-mail: email@example.com e-mail: firstname.lastname@example.org admin-c: OZI1-RIPE admin-c: MKL19-RIPE admin-c: TA2606-RIPE admin-c: KW2936-RIPE tech-c: MKL19-RIPE tech-c: TA2606-RIPE tech-c: KW2936-RIPE nic-hdl: HAMM2-RIPE remarks: Send hack-, spam- and abuse complaints remarks: to abuse-mailbox only! remarks: ALL OTHERS WILL BE TRASHED! abuse-mailbox: email@example.com notify: firstname.lastname@example.org mnt-by: AS12355-MNT created: 2002-04-04T08,01,33Z last-modified: 2016-09-05T09,29,35Z source: RIPE route6: 2001,14f7,,/32 descr: DE-HAMCOM-2001-14f7 descr: HeLiNET Telekommunikation, Hamm, Germany origin: AS12355 mnt-lower: AS12355-MNT mnt-routes: AS12355-MNT mnt-by: AS12355-MNT created: 2015-04-10T06,04,27Z last-modified: 2015-04-10T06,04,27Z 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.