inetnum: 18.104.22.168 - 22.214.171.124 netname: RU-SIBNET remarks: INFRA AW status: LIR-PARTITIONED PA descr: RU-SIBNET-NETWORKS descr: OJSC "Sibirtelecom" remarks: Allocation for Omsk branch of the OJSC Sibirtelecom country: RU admin-c: VIK3-RIPE tech-c: VAZ14-RIPE mnt-by: NSOELSV-NCC mnt-lower: NSOELSV-NCC mnt-lower: OEC-MNT mnt-domains: OEC-MNT mnt-domains: NSOELSV-NCC mnt-routes: OEC-MNT mnt-routes: NSOELSV-NCC notify: email@example.com notify: firstname.lastname@example.org created: 2007-11-26T04,59,18Z last-modified: 2007-11-26T04,59,18Z source: RIPE person: Vitaly A. Zinovjev address: Omsk region Electric Communications Joint Stock Comp. address: 3, Gertsen st. address: Omsk, 644099, Russia phone: +7 3812 220107 fax-no: +7 3812 238473 e-mail: email@example.com nic-hdl: VAZ14-RIPE notify: firstname.lastname@example.org mnt-by: OEC-MNT created: 2002-12-04T04,19,57Z last-modified: 2004-07-01T07,26,58Z source: RIPE person: Vladimir I. Khlystov address: Omsk region Electric Communications Joint Stock Comp. address: 3, Gertsen st. address: Omsk, 644099 address: Russia phone: +7 3812 241219 fax-no: +7 3812 238473 e-mail: email@example.com nic-hdl: VIK3-RIPE notify: firstname.lastname@example.org mnt-by: OEC-MNT created: 1970-01-01T00,00,00Z last-modified: 2002-12-04T04,25,33Z source: RIPE route: 126.96.36.199/18 descr: OJSC "Sibirtelecom" remarks: Omsk branch origin: AS8594 mnt-by: NSOELSV-NCC notify: email@example.com created: 2007-12-12T11,32,24Z last-modified: 2007-12-12T11,32,24Z 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.