inetnum: 18.104.22.168 - 22.214.171.124 netname: SYMBIOS-SPB descr: St-Petersburg, Russia country: RU admin-c: DT1527-RIPE tech-c: GM5350-RIPE status: ASSIGNED PA mnt-by: SYMBIOS-MNT mnt-lower: SYMBIOS-MNT mnt-routes: SYMBIOS-MNT created: 2006-11-28T16:09:21Z last-modified: 2011-02-17T11:29:23Z source: RIPE person: Dmitriy Trofimov address: Ozerkovskiy lane 3 address: Moscow, Russia phone: +7 495 7417017 fax-no: +7 495 6004110 e-mail: firstname.lastname@example.org nic-hdl: DT1527-RIPE created: 2005-04-04T12:11:32Z last-modified: 2012-06-17T18:57:19Z source: RIPE mnt-by: SYMBIOS-MNT person: Georg M address: Ozerkovskiy lane 3 address: Moscow, Russia phone: +7 495 6004110 e-mail: email@example.com nic-hdl: GM5350-RIPE created: 2005-04-04T12:08:30Z last-modified: 2012-06-17T18:58:47Z source: RIPE mnt-by: SYMBIOS-MNT route: 126.96.36.199/24 descr: St-Petersburg network descr: SYMBIOS descr: St-Petersburg, Russia origin: AS34898 mnt-by: SYMBIOS-MNT notify: firstname.lastname@example.org created: 2011-02-17T09:28:54Z last-modified: 2011-02-17T09:28:54Z source: RIPE
IP Addresses in this 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.