AS3356 216.143.0.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 2048216.143.0.0/24216.143.1.0/24216.143.2.0/24216.143.3.0/24216.143.4.0/24216.143.5.0/24216.143.6.0/24216.143.7.0/24