AS3356 209.244.144.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048209.244.144.0/24209.244.145.0/24209.244.146.0/24209.244.147.0/24209.244.148.0/24209.244.149.0/24209.244.150.0/24209.244.151.0/24