inetnum: 188.8.131.52/20 aut-num: AS28596 abuse-c: LGS90 owner: B3 S.A. Brasil, Bolsa, Balcão ownerid: 09.346.601/0001-25 responsible: Gilson Finkelsztain owner-c: JRL170 tech-c: SEKYA inetrev: 184.108.40.206/20 nserver: dns1.bmfbovespa.net.br nsstat: 20170824 AA nslastaa: 20170824 nserver: dns2.bmfbovespa.net.br nsstat: 20170824 AA nslastaa: 20170824 created: 20110506 changed: 20110611 nic-hdl-br: JRL170 person: João Roberto Magalhães Lima created: 20030517 changed: 20170309 nic-hdl-br: LGS90 person: Luiz Gonzaga de Oliveira Simões created: 20000821 changed: 20020919 nic-hdl-br: SEKYA person: Sergio Kenji Yasuraoka created: 20070828 changed: 20110121
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.