AS28573 191.187.56.0/21 CIDR and IP Range Summary.ASN: 28573 - Claro NXT Telecomunicacoes LtdaHost Count: 2046Addressable IPs: 2048191.187.56.0/24191.187.57.0/24191.187.58.0/24191.187.59.0/24191.187.60.0/24191.187.61.0/24191.187.62.0/24191.187.63.0/24