AS3491 63.219.152.0/21 CIDR and IP Range Summary.ASN: 3491 - PCCW Global Inc.Host Count: 2046Addressable IPs: 204863.219.152.0/2463.219.153.0/2463.219.154.0/2463.219.155.0/2463.219.156.0/2463.219.157.0/2463.219.158.0/2463.219.159.0/24