AS51964 57.75.80.0/20 CIDR and IP Range Summary.ASN: 51964 - Orange Business Services U.S. Inc.Host Count: 4094Addressable IPs: 409657.75.80.0/2457.75.81.0/2457.75.82.0/2457.75.83.0/2457.75.84.0/2457.75.85.0/2457.75.86.0/2457.75.87.0/2457.75.88.0/2457.75.89.0/2457.75.90.0/2457.75.91.0/2457.75.92.0/2457.75.93.0/2457.75.94.0/2457.75.95.0/24