AS3356 8.28.24.0/21 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.28.24.0/248.28.25.0/248.28.26.0/248.28.27.0/248.28.28.0/248.28.29.0/248.28.30.0/248.28.31.0/24