inetnum: 148.209/16 status: assigned aut-num: N/A owner: Universidad Autonoma de Yucatan ownerid: MX-UAYU-LACNIC responsible: Juan Antonio Herrera Correa address: Calle 60, 491-A, x 57 address: 97000 - Merida - YU country: MX phone: +52 9999237428  owner-c: CIU tech-c: CIU abuse-c: CIU inetrev: 148.209/16 nserver: TUNKU.UADY.MX nsstat: 20170822 AA nslastaa: 20170822 nserver: DZIU.UADY.MX nsstat: 20170822 AA nslastaa: 20170822 created: 19931129 changed: 20100311 nic-hdl: CIU person: Centro de Informacion de Red UADY e-mail: nic@CORREO.UADY.MX address: 60, 491-A, 57, Colonia Centro address: 97000 - Merida - Yu country: MX phone: +52 9999237428  created: 20100211 changed: 20170608
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.