AS3549 216.84.128.0/21 CIDR and IP Range Summary.ASN: 3549 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048216.84.128.0/24216.84.129.0/24216.84.130.0/24216.84.131.0/24216.84.132.0/24216.84.133.0/24216.84.134.0/24216.84.135.0/24