AS3561 206.27.208.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048206.27.208.0/24206.27.209.0/24206.27.210.0/24206.27.211.0/24206.27.212.0/24206.27.213.0/24206.27.214.0/24206.27.215.0/24