AS3561 204.71.104.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048204.71.104.0/24204.71.105.0/24204.71.106.0/24204.71.107.0/24204.71.108.0/24204.71.109.0/24204.71.110.0/24204.71.111.0/24