AS28573 181.218.248.0/21 CIDR and IP Range Summary.ASN: 28573 - Claro NXT Telecomunicacoes LtdaHost Count: 2046Addressable IPs: 2048181.218.248.0/24181.218.249.0/24181.218.250.0/24181.218.251.0/24181.218.252.0/24181.218.253.0/24181.218.254.0/24181.218.255.0/24