AS28509 189.221.240.0/21 CIDR and IP Range Summary.ASN: 28509 - Cablemas Telecomunicaciones SA de CVHost Count: 2046Addressable IPs: 2048189.221.240.0/24189.221.241.0/24189.221.242.0/24189.221.243.0/24189.221.244.0/24189.221.245.0/24189.221.246.0/24189.221.247.0/24