inetnum: 220.127.116.11 - 18.104.22.168 netname: SBUN descr: Shahid Beheshti University country: IR admin-c: MHHF1-RIPE tech-c: SVM128-RIPE tech-c: SK12150-RIPE status: ASSIGNED PA mnt-by: IPM-MNT created: 2015-03-07T05,13,23Z last-modified: 2016-09-28T05,39,28Z source: RIPE person: Mohammad Hossein Hamidi far address: 2nd floor of fanavari Building ,shahid beheshti univercity phone: +9821 29903215 e-mail: email@example.com nic-hdl: MHHF1-RIPE mnt-by: IPM-MNT created: 2016-09-28T05,36,57Z last-modified: 2016-09-28T05,36,57Z source: RIPE person: Saeed Khosravian address: 2nd floor of fanavari Building ,shahid beheshti univercity phone: +9821 22903226 e-mail: firstname.lastname@example.org nic-hdl: SK12150-RIPE mnt-by: IPM-MNT created: 2016-09-28T05,38,57Z last-modified: 2016-09-28T05,38,57Z source: RIPE person: sahar vahid mohammadi address: 2ed floor of fanavari Building ,shahid beheshti univercity phone: +9821 22431727 e-mail: email@example.com nic-hdl: SVM128-RIPE mnt-by: ipm-mnt created: 2014-11-11T05,21,41Z last-modified: 2014-11-11T05,21,41Z source: RIPE route: 22.214.171.124/21 descr: Shahid Beheshti University origin: AS56765 mnt-by: ipm-mnt created: 2015-03-07T05,14,49Z last-modified: 2015-03-07T05,14,49Z 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.