AS3491 63.221.112.0/20 CIDR and IP Range Summary.ASN: 3491 - PCCW Global Inc.Host Count: 4094Addressable IPs: 409663.221.112.0/2463.221.113.0/2463.221.114.0/2463.221.115.0/2463.221.116.0/2463.221.117.0/2463.221.118.0/2463.221.119.0/2463.221.120.0/2463.221.121.0/2463.221.122.0/2463.221.123.0/2463.221.124.0/2463.221.125.0/2463.221.126.0/2463.221.127.0/24