AS3356 8.21.48.0/20 CIDR and IP Range Summary.ASN: 3356 - Level 3 Parent LLCHost Count: 4094Addressable IPs: 40968.21.48.0/248.21.49.0/248.21.50.0/248.21.51.0/248.21.52.0/248.21.53.0/248.21.54.0/248.21.55.0/248.21.56.0/248.21.57.0/248.21.58.0/248.21.59.0/248.21.60.0/248.21.61.0/248.21.62.0/248.21.63.0/24