18.104.22.168/21 - USI_ADSL_USERS
inetnum: 22.214.171.124 - 126.96.36.199 netname: USI_ADSL_USERS descr: Dynamic distribution IP's for broadband services descr: OJSC RosteleÓom, regional branch "Urals" country: RU admin-c: UPAS1-RIPE tech-c: UPAS1-RIPE status: ASSIGNED PA mnt-by: MFIST-MNT created: 2011-03-02T08:42:09Z last-modified: 2012-03-06T13:48:34Z source: RIPE role: Uralsvyazinform Perm Administration Staff address: 11, Moskovskaya str. address: Yekaterinburg, 620014 address: Russian Federation e-mail: firstname.lastname@example.org admin-c: SK2534-RIPE admin-c: DK2192-RIPE admin-c: SK3575-RIPE admin-c: TA2344-RIPE tech-c: DK2192-RIPE tech-c: SK3575-RIPE tech-c: TA2344-RIPE nic-hdl: UPAS1-RIPE mnt-by: MFIST-MNT created: 2007-09-18T08:50:24Z last-modified: 2009-01-28T08:06:05Z source: RIPE route: 188.8.131.52/21 descr: OJSC uralsvyazinform, Salekhard subsidiary origin: AS34875 mnt-by: MFIST-MNT created: 2011-02-18T08:24:56Z last-modified: 2011-02-18T08:24:56Z 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.