AS23872 delDSL Internet Pvt. Ltd.
2404:a200::/32 - DELDSL-IN
inet6num: 2404:a200::/32 netname: DELDSL-IN descr: delDSL Internet Pvt. Ltd. country: IN admin-c: LCM18-AP tech-c: LCM18-AP status: ALLOCATED PORTABLE mnt-by: MAINT-IN-IRINN mnt-routes: MAINT-IN-DELDSL mnt-lower: MAINT-IN-DELDSL mnt-irt: IRT-DELDSL-IN last-modified: 2013-05-26T22:53:57Z source: APNIC irt: IRT-DELDSL-IN address: DELDSL INTERNET PVT. LTD. address: 101, Tower D, Global Business Park address: MG Road address: Gurgaon, Haryana 122002 e-mail: firstname.lastname@example.org abuse-mailbox: email@example.com admin-c: LCM18-AP tech-c: LCM18-AP auth: # Filtered mnt-by: MAINT-IN-DELDSL last-modified: 2013-09-27T06:08:23Z source: APNIC person: LALIT CHANDRA MATHUR address: DELDSL INTERNET PVT. LTD. address: K 1 GREEN PARK MAIN address: NEW DELHI country: IN phone: +91-11653-3690 phone: +91-11653-3691 fax-no: +91-11685-1816 e-mail: firstname.lastname@example.org nic-hdl: LCM18-AP mnt-by: MAINT-IN-DELDSL last-modified: 2017-05-22T02:14:47Z 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.