AS28509 187.252.168.0/21 CIDR and IP Range Summary.ASN: 28509 - Cablemas Telecomunicaciones SA de CVHost Count: 2046Addressable IPs: 2048187.252.168.0/24187.252.169.0/24187.252.170.0/24187.252.171.0/24187.252.172.0/24187.252.173.0/24187.252.174.0/24187.252.175.0/24