AS3356 8.18.24.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.18.24.0/248.18.25.0/248.18.26.0/248.18.27.0/248.18.28.0/248.18.29.0/248.18.30.0/248.18.31.0/24