AS28509 187.253.192.0/21 CIDR and IP Range Summary.ASN: 28509 - Cablemas Telecomunicaciones SA de CVHost Count: 2046Addressable IPs: 2048187.253.192.0/24187.253.193.0/24187.253.194.0/24187.253.195.0/24187.253.196.0/24187.253.197.0/24187.253.198.0/24187.253.199.0/24