AS524 8.243.128.0/21 CIDR and IP Range Summary.ASN: 524 - Global Crossing Americas Solutions LLCHost Count: 2046Addressable IPs: 20488.243.128.0/248.243.129.0/248.243.130.0/248.243.131.0/248.243.132.0/248.243.133.0/248.243.134.0/248.243.135.0/24