AS3549 216.84.16.0/21 CIDR and IP Range Summary.ASN: 3549 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048216.84.16.0/24216.84.17.0/24216.84.18.0/24216.84.19.0/24216.84.20.0/24216.84.21.0/24216.84.22.0/24216.84.23.0/24