AS3549 209.12.40.0/21 CIDR and IP Range Summary.ASN: 3549 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048209.12.40.0/24209.12.41.0/24209.12.42.0/24209.12.43.0/24209.12.44.0/24209.12.45.0/24209.12.46.0/24209.12.47.0/24