AS3491 217.156.160.0/21 CIDR and IP Range Summary.ASN: 3491 - PCCW Global Inc.Host Count: 2046Addressable IPs: 2048217.156.160.0/24217.156.161.0/24217.156.162.0/24217.156.163.0/24217.156.164.0/24217.156.165.0/24217.156.166.0/24217.156.167.0/24