AS269574 Smart Net
inetnum: 2804:66a8::/32 status: allocated owner: Smart Net city: Itapevi country: BR owner-c: VSF10 tech-c: VSF10 abuse-c: VSF10 created: 2019-11-19 changed: 2019-11-19 source: LACNIC nic-hdl-br: VASFE85 person: VALTER DE SOUZA FERRAZ e-mail: email@example.com country: BR created: 20170827 changed: 20201216
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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.