AS72 192.23.80.0/21 CIDR and IP Range Summary.ASN: 72 - Schlumberger LimitedHost Count: 2046Addressable IPs: 2048192.23.80.0/24192.23.81.0/24192.23.82.0/24192.23.83.0/24192.23.84.0/24192.23.85.0/24192.23.86.0/24192.23.87.0/24