AS23659 APNIC HEITECH ASN
2401:5200::/32 - ISENTRIXNET
inet6num: 2401:5200::/32 netname: ISENTRIXNET descr: HeiTech Padu Bhd. descr: Grd. Floor, HeiTech Village descr: (WISMA INTEGRATED), descr: Persiaran Kewajipan, USJ 1, descr: UEP Subang Jaya 47600 descr: Selangor, Malaysia country: MY org: ORG-HPB1-AP admin-c: SA141-AP tech-c: SA141-AP mnt-lower: MAINT-MY-HEITECH mnt-by: APNIC-HM status: ALLOCATED PORTABLE last-modified: 2017-08-30T07:12:28Z source: APNIC mnt-irt: IRT-HEITECH-MY person: Shahril Nizam Abd. Halim nic-hdl: SA141-AP e-mail: email@example.com address: HeiTech Padu Bhd. address: GRD. Floor, HeiTech Village address: (WISMA INTEGRATED) address: Persiaran Kewajipan, USJ 1, address: UEP Subang Jaya 47600 address: Selangor,Malaysia phone: +60-3-7803-9000 fax-no: +60-3-7805-2089 country: MY mnt-by: MAINT-MY-HEITECH last-modified: 2008-09-04T07:29:20Z source: APNIC irt: IRT-HEITECH-MY address: HeiTech Padu Bhd. address: GRD. Floor, HeiTech Village address: (WISMA INTEGRATED) address: Persiaran Kewajipan, USJ 1, e-mail: firstname.lastname@example.org abuse-mailbox: email@example.com admin-c: SA141-AP tech-c: SA141-AP auth: # Filtered mnt-by: MAINT-MY-HEITECH last-modified: 2014-07-02T01:16:11Z 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.