General Info
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Whois Details
inet6num: 2a0a,fc80,,/32 netname: FR-HRNET-20161220 country: FR org: ORG-HA6-RIPE admin-c: HN2352-RIPE tech-c: HN2352-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-by: HRNET-MNT created: 2016-12-20T08,21,33Z last-modified: 2016-12-20T08,21,33Z source: RIPE organisation: ORG-HA6-RIPE org-name: H.R.Net SARL org-type: LIR address: Parc de L'Ohmbac - 20 rue des Anémones address: 68250 address: Westhalten address: FRANCE phone: +33 3 89 33 42 00 fax-no: +33 3 89 33 42 22 e-mail: noc@hrnet.fr admin-c: DN296-RIPE abuse-c: HA2750-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: HRNET-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: HRNET-MNT created: 2004-04-17T11,22,17Z last-modified: 2016-06-14T08,24,55Z source: RIPE role: HRNET NOC address: Parc de L'Ohmbac - 20 rue des Anémones address: Westhalten address: France e-mail: noc@hrnet.fr nic-hdl: HN2352-RIPE mnt-by: HRNET-MNT created: 2016-12-19T12,46,58Z last-modified: 2016-12-19T12,51,45Z source: RIPE admin-c: DN296-RIPE tech-c: HN2075-RIPE route6: 2a0a,fc80,,/32 descr: HRNETFR-SUBBLOCK2 descr: H.R.Net France Sub-Block 2 remarks: hrnet.fr notify: noc@hrnet.fr origin: AS12409 mnt-by: HRNET-MNT created: 2016-12-20T08,38,07Z last-modified: 2016-12-20T08,38,07Z source: RIPE
Details
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.