AS3561 216.88.168.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048216.88.168.0/24216.88.169.0/24216.88.170.0/24216.88.171.0/24216.88.172.0/24216.88.173.0/24216.88.174.0/24216.88.175.0/24