inetnum: 18.104.22.168 - 22.214.171.124 netname: GDT-VN descr: Department of Information Technology - General Department of Taxation descr: 9th Floor, VTC Building, No 18 Tam Trinh Street, Hai Ba Trung district, Ha Noi City admin-c: PQT9-AP tech-c: NTL9-AP remarks: send spam and abuse report to firstname.lastname@example.org country: VN mnt-by: MAINT-VN-VNNIC mnt-lower: MAINT-VN-VNNIC mnt-irt: IRT-VNNIC-AP status: ASSIGNED PORTABLE last-modified: 2017-11-06T07:00:16Z source: APNIC
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.