AS3549 216.84.56.0/21 CIDR and IP Range Summary.ASN: 3549 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048216.84.56.0/24216.84.57.0/24216.84.58.0/24216.84.59.0/24216.84.60.0/24216.84.61.0/24216.84.62.0/24216.84.63.0/24