AS3561 209.144.208.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 4096209.144.208.0/24209.144.209.0/24209.144.210.0/24209.144.211.0/24209.144.212.0/24209.144.213.0/24209.144.214.0/24209.144.215.0/24209.144.216.0/24209.144.217.0/24209.144.218.0/24209.144.219.0/24209.144.220.0/24209.144.221.0/24209.144.222.0/24209.144.223.0/24