inetnum: 188.8.131.52 - 184.108.40.206 netname: CENTROSET-NET country: RU org: ORG-CL112-RIPE admin-c: AVS23-RIPE tech-c: AVS23-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: MNT-CENTROSET mnt-routes: MNT-CENTROSET mnt-domains: MNT-CENTROSET notify: email@example.com created: 2012-03-22T11:06:19Z last-modified: 2016-04-14T10:45:37Z source: RIPE sponsoring-org: ORG-LL38-RIPE organisation: ORG-CL112-RIPE org-name: CentroSet Ltd. org-type: OTHER address: Russia, Moscow, 1y Dorozhniy proezd, 9 e-mail: firstname.lastname@example.org abuse-c: AR19364-RIPE mnt-ref: MNT-CENTROSET mnt-by: MNT-CENTROSET created: 2009-03-11T07:32:37Z last-modified: 2014-03-28T03:27:15Z source: RIPE person: Alexey V. Shatnev address: Russia, Moscow, 1y Dorozhniy proezd, 9 phone: +7 917 5914181 nic-hdl: AVS23-RIPE created: 2009-03-11T07:32:33Z last-modified: 2011-09-08T10:42:34Z source: RIPE mnt-by: MNT-CENTROSET route: 220.127.116.11/21 descr: ISP CentroSet origin: AS49124 mnt-by: MNT-CENTROSET created: 2012-03-26T16:07:30Z last-modified: 2012-03-26T16:07:30Z source: RIPE
IP address subranges within this IP range
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.