AS3549 216.54.248.0/21 CIDR and IP Range Summary.ASN: 3549 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048216.54.248.0/24216.54.249.0/24216.54.250.0/24216.54.251.0/24216.54.252.0/24216.54.253.0/24216.54.254.0/24216.54.255.0/24