220.127.116.11/21 - CHIEF-AS-AP
inetnum: 18.104.22.168 - 22.214.171.124 netname: CHIEF-AS-AP descr: Chief Telecom Inc. descr: No. 250 Yuang Guang St descr: Taipei City, Taiwan country: TW admin-c: FC159-AP tech-c: CG195-AP status: ALLOCATED PORTABLE mnt-by: MAINT-TW-TWNIC mnt-irt: IRT-TWNIC-AP last-modified: 2015-09-24T01:42:29Z 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.