AS28573 191.186.216.0/21 CIDR and IP Range Summary.ASN: 28573 - Claro NXT Telecomunicacoes LtdaHost Count: 2046Addressable IPs: 2048191.186.216.0/24191.186.217.0/24191.186.218.0/24191.186.219.0/24191.186.220.0/24191.186.221.0/24191.186.222.0/24191.186.223.0/24