18.104.22.168/20 - RighTel
inetnum: 22.214.171.124 - 126.96.36.199 netname: RighTel descr: "Rightel Communication Service Company PJS" country: IR admin-c: RP12366-RIPE tech-c: RP12366-RIPE status: ASSIGNED PA mnt-by: TA59784-MNT created: 2013-08-20T11:05:26Z last-modified: 2014-05-17T05:26:40Z source: RIPE person: RighTel PJS address: 9th floor, Chooka Building, No 8 , west Armaghan Street, Vali-e-Asr Street (After Niayesh Highway), Tehran, Iran phone: + 982127654530 nic-hdl: RP12366-RIPE mnt-by: TA59784-MNT created: 2014-05-17T05:23:47Z last-modified: 2014-05-17T05:23:47Z source: RIPE route: 188.8.131.52/18 descr: "Rightel Communication Service Company PJS" origin: AS57218 mnt-by: TA59784-MNT created: 2013-08-22T06:28:16Z last-modified: 2013-08-22T06:28:16Z 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.