AS3491 63.223.192.0/21 CIDR and IP Range Summary.ASN: 3491 - PCCW Global Inc.Host Count: 2046Addressable IPs: 204863.223.192.0/2463.223.193.0/2463.223.194.0/2463.223.195.0/2463.223.196.0/2463.223.197.0/2463.223.198.0/2463.223.199.0/24