18.104.22.168/21 - IAN
inetnum: 22.214.171.124/21 aut-num: AS262677 abuse-c: DZA3 owner: CILNET Comunicacao e Informatica LTDA. ownerid: 04.127.856/0001-83 responsible: Diego Zuaneti Arruda owner-c: IAN11 tech-c: IAN11 inetrev: 126.96.36.199/21 nserver: server2.fasternet.com.br nsstat: 20170305 AA nslastaa: 20170305 nserver: server3.fasternet.com.br nsstat: 20170305 AA nslastaa: 20170305 created: 20160414 changed: 20160414 inetnum-up: 188.8.131.52/20 nic-hdl-br: IAN11 person: Israel Arruda Neto created: 20000729 changed: 20060601 nic-hdl-br: DZA3 person: Diego Zuaneti Arruda created: 20010425 changed: 20090127
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.