AS3561 64.242.176.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204864.242.176.0/2464.242.177.0/2464.242.178.0/2464.242.179.0/2464.242.180.0/2464.242.181.0/2464.242.182.0/2464.242.183.0/24