AS3549 Level 3 Parent, LLC
2803:d460::/32 - LAS133
inetnum: 2803:d460::/32 status: allocated owner: URBALINK NETWORKS, C.A. city: CARACAS country: VE owner-c: LAS133 tech-c: LAS133 abuse-c: LAS133 created: 2019-04-26 changed: 2019-04-26 source: LACNIC nic-hdl: LAS133 person: Jesus Palacio G. e-mail: jesus.palacio@URBALINK.COM address: El Carmen, 10712, Edificio Centro Dos Caminos, Piso 8, Oficina 8D address: - - Caracas - MIranda country: VE phone: +58 4142395126  created: 20180314 changed: 20190411
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.