AS18206 VADS Managed Business Internet Service Provider
2404:b8::/32 - VPISIPV6-MY-20060407
inet6num: 2404:b8::/32 netname: VPISIPV6-MY-20060407 descr: Vads Berhad, Internet Service Provider, descr: Kuala Lumpur, Malaysia country: MY admin-c: BT162-AP tech-c: BT162-AP remarks: IPv6 network for Internet core infra status: ALLOCATED PORTABLE mnt-by: APNIC-HM mnt-lower: MAINT-MY-VADS mnt-irt: IRT-VADS-MY last-modified: 2011-05-19T11:15:13Z source: APNIC person: Boon Hock Tei nic-hdl: BT162-AP e-mail: email@example.com address: 1st Floor, AHP Building address: Jalan Tun Mohd Fuad 3 address: Taman Tun Dr Ismail address: 60000 Kuala Lumpur country: MY phone: +6-03-7712-8888 fax-no: +603-77282584 mnt-by: MAINT-MY-VADS last-modified: 2008-09-04T07:29:43Z source: APNIC irt: IRT-VADS-MY address: VADS Bhd, Internet Service Provider address: VADS Plaza address: Taman Tun Dr Ismail, 60000 address: Kuala Lumpur, Malaysia e-mail: firstname.lastname@example.org abuse-mailbox: email@example.com admin-c: VIA1-AP tech-c: VIA1-AP auth: # Filtered mnt-by: MAINT-MY-VADS last-modified: 2011-04-28T02:04:06Z source: APNIC
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.