18.104.22.168/20 - OCN
inetnum: 148.102.0/17 status: allocated owner: AMERICATEL PERU S.A. city: Lima country: PE owner-c: OCN tech-c: OCN abuse-c: OCN inetrev: 148.102.0/17 nserver: NS1.AMERICATELNET.COM.PE nserver: NS2.AMERICATELNET.COM.PE created: 2014-04-22 changed: 2014-04-22 source: LACNIC
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.