AS22561 216.166.216.0/21 CIDR and IP Range Summary.ASN: 22561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048216.166.216.0/24216.166.217.0/24216.166.218.0/24216.166.219.0/24216.166.220.0/24216.166.221.0/24216.166.222.0/24216.166.223.0/24