AS28198 177.52.48.0/21 CIDR and IP Range Summary.ASN: 28198 - Sempre Telecomunicacoes LtdaHost Count: 2046Addressable IPs: 2048177.52.48.0/24177.52.49.0/24177.52.50.0/24177.52.51.0/24177.52.52.0/24177.52.53.0/24177.52.54.0/24177.52.55.0/24