AS3549 216.84.144.0/21 CIDR and IP Range Summary.ASN: 3549 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048216.84.144.0/24216.84.145.0/24216.84.146.0/24216.84.147.0/24216.84.148.0/24216.84.149.0/24216.84.150.0/24216.84.151.0/24