inetnum: 181.189.153/24 status: reallocated owner: TIGO-CORPORATIVO ownerid: GT-TIGO1-LACNIC responsible: Juan Pablo Monzón Aguilar address: Km 9.5 (CA-1),edificio plaza tigo,Santa Catarina Pinula, , address: - Santa Catarina Pinula - country: GT phone: +502 502 24280000  owner-c: SAB3 tech-c: SAB3 abuse-c: SAB3 created: 20160330 changed: 20160330 inetnum-up: 181.189.144/20 nic-hdl: SAB3 person: Millicom Gutemala e-mail: lacnicgtmic@GMAIL.COM address: Km. 9.5 Carr. El Salvador Edificio Plaza Tigo, 3, Nivel address: 100020 - Guatemala - GT country: GT phone: +502 24281000  created: 20090708 changed: 20120125
IP Addresses in this range
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.