inetnum: 184.108.40.206/20 aut-num: AS22055 abuse-c: SETIN16 owner: Banco Central do Brasil ownerid: 00.038.166/0001-05 responsible: Deise Springer de Freitas country: BR owner-c: SETIN16 tech-c: DIBCB inetrev: 220.127.116.11/20 nserver: ns2.bcb.gov.br nsstat: 20170307 AA nslastaa: 20170307 nserver: ns.bcb.gov.br nsstat: 20170307 AA nslastaa: 20170307 created: 20030502 changed: 20160531 nic-hdl-br: SETIN16 person: Segurança em Tecnologia da Informação e-mail: firstname.lastname@example.org country: BR created: 20150617 changed: 20170106 nic-hdl-br: DIBCB person: DIRED BCB e-mail: email@example.com country: BR created: 20121227 changed: 20121227
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.