AS3356 8.18.64.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.18.64.0/248.18.65.0/248.18.66.0/248.18.67.0/248.18.68.0/248.18.69.0/248.18.70.0/248.18.71.0/24