AS3549 217.156.240.0/21 CIDR and IP Range Summary.ASN: 3549 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048217.156.240.0/24217.156.241.0/24217.156.242.0/24217.156.243.0/24217.156.244.0/24217.156.245.0/24217.156.246.0/24217.156.247.0/24