AS28623 PONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL
188.8.131.52/24 - ADP15
inetnum: 201.54.128/19 status: assigned owner: PONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL city: Porto Alegre country: BR owner-c: ADP15 tech-c: ADP15 abuse-c: ADP15 inetrev: 201.54.128/19 nserver: NS01.PUCRS.BR nserver: NS02.PUCRS.BR created: 2005-12-14 changed: 2013-03-06 source: LACNIC
IP Addresses in this 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.