AS3561 63.128.160.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204863.128.160.0/2463.128.161.0/2463.128.162.0/2463.128.163.0/2463.128.164.0/2463.128.165.0/2463.128.166.0/2463.128.167.0/24