AS3356 72.236.152.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 204872.236.152.0/2472.236.153.0/2472.236.154.0/2472.236.155.0/2472.236.156.0/2472.236.157.0/2472.236.158.0/2472.236.159.0/24