188.8.131.52/21 - IAN
inetnum: 184.108.40.206/20 aut-num: AS28580 abuse-c: GSF114 owner: CILNET Comunicacao e Informatica LTDA. ownerid: 04.127.856/0001-83 responsible: Diego Zuaneti Arruda owner-c: IAN11 tech-c: DZA3 inetrev: 220.127.116.11/20 nserver: server2.fasternet.com.br nsstat: 20170305 AA nslastaa: 20170305 nserver: server3.fasternet.com.br nsstat: 20170305 AA nslastaa: 20170305 created: 20050727 changed: 20050727 nic-hdl-br: IAN11 person: Israel Arruda Neto created: 20000729 changed: 20060601 nic-hdl-br: DZA3 person: Diego Zuaneti Arruda created: 20010425 changed: 20090127 nic-hdl-br: GSF114 person: Grupo de Segurança Internet da Fasternet created: 20050729 changed: 20060102
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.