inetnum: 18.104.22.168 - 22.214.171.124 netname: APOL-NET descr: Asia Pacific On-Line Service Inc. descr: 3F, No.19-6, Sanchong Rd, Nankang Dist. descr: Taipei Taiwan 115 country: TW admin-c: AA91-AP tech-c: AA91-AP status: ALLOCATED PORTABLE mnt-by: MAINT-TW-TWNIC mnt-lower: MAINT-TW-TWNIC mnt-irt: IRT-TWNIC-AP last-modified: 2010-12-21T05:39:29Z source: APNIC
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.