AS209 209.16.216.0/21 CIDR and IP Range Summary.ASN: 209 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048209.16.216.0/24209.16.217.0/24209.16.218.0/24209.16.219.0/24209.16.220.0/24209.16.221.0/24209.16.222.0/24209.16.223.0/24