AS28573 181.216.240.0/21 CIDR and IP Range Summary.ASN: 28573 - Claro NXT Telecomunicacoes LtdaHost Count: 2046Addressable IPs: 2048181.216.240.0/24181.216.241.0/24181.216.242.0/24181.216.243.0/24181.216.244.0/24181.216.245.0/24181.216.246.0/24181.216.247.0/24