AS3561 204.188.144.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 4096204.188.144.0/24204.188.145.0/24204.188.146.0/24204.188.147.0/24204.188.148.0/24204.188.149.0/24204.188.150.0/24204.188.151.0/24204.188.152.0/24204.188.153.0/24204.188.154.0/24204.188.155.0/24204.188.156.0/24204.188.157.0/24204.188.158.0/24204.188.159.0/24