AS23074 PETROLEO BRASILEIRO S.A. - PETROBRAS
126.96.36.199/20 - THW8
inetnum: 164.85/16 status: assigned owner: PETROLEO BRASILEIRO S.A. - PETROBRAS city: Rio de Janeiro country: BR owner-c: THW8 tech-c: PBS12 abuse-c: PBS12 inetrev: 164.85/16 nserver: NICOLINO.PETROBRAS.COM.BR nserver: HARPIA.PETROBRAS.COM.BR nserver: MEDUSA.PETROBRAS.COM.BR created: 1993-01-12 changed: 2014-06-03 source: LACNIC nic-hdl: PBS12 person: PETROLEO BRASILEIRO S.A. e-mail: PBS12@NUMERACAO.REGISTRO.BR address: Av. das Nações Unidas, 11541, 7º andar address: 04578-000 - Rio de Janeiro - RJ country: BR phone: +55 21 55093511  created: 20130801 changed: 20130801
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.