AS1897 88.157.136.0/21 CIDR and IP Range Summary.ASN: 1897 - Nos Comunicacoes S.A.Host Count: 2046Addressable IPs: 204888.157.136.0/2488.157.137.0/2488.157.138.0/2488.157.139.0/2488.157.140.0/2488.157.141.0/2488.157.142.0/2488.157.143.0/24