AS3561 204.71.224.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048204.71.224.0/24204.71.225.0/24204.71.226.0/24204.71.227.0/24204.71.228.0/24204.71.229.0/24204.71.230.0/24204.71.231.0/24