AS28640 189.51.80.0/21 CIDR and IP Range Summary.ASN: 28640 - VIPWay ServiAos de TelecomunicaAAes LtdaHost Count: 2046Addressable IPs: 2048189.51.80.0/24189.51.81.0/24189.51.82.0/24189.51.83.0/24189.51.84.0/24189.51.85.0/24189.51.86.0/24189.51.87.0/24