inetnum: 189.216/15 status: allocated aut-num: N/A owner: Cablevisión, S.A. de C.V. ownerid: MX-CSCV17-LACNIC responsible: Isaac Torres Galvam address: Javier Barros Sierra, 540, Col. Lomas de Santa Fe address: 01219 - Deleg. Alvaro Obregon - CX country: MX phone: +52 5591831800  owner-c: LAA2 tech-c: LAA2 abuse-c: LAA2 inetrev: 189.216/15 nserver: CVDNSISP5.CABLEVISION.NET.MX nsstat: 20170307 AA nslastaa: 20170307 nserver: CVDNSISP4.CABLEVISION.NET.MX nsstat: 20170307 AA nslastaa: 20170307 created: 20071205 changed: 20111115 nic-hdl: LAA2 person: IP Master e-mail: ipmasterCV@IZZI.MX address: Niños Héroes, 41, Col. Doctores address: 06720 - Del. Cuauhtémoc - CX country: MX phone: +52 5550225408  created: 20050307 changed: 20170125
IP address subranges within this IP 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.