AS3561 66.101.208.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204866.101.208.0/2466.101.209.0/2466.101.210.0/2466.101.211.0/2466.101.212.0/2466.101.213.0/2466.101.214.0/2466.101.215.0/24