AS72 192.23.72.0/21 CIDR and IP Range Summary.ASN: 72 - Schlumberger LimitedHost Count: 2046Addressable IPs: 2048192.23.72.0/24192.23.73.0/24192.23.74.0/24192.23.75.0/24192.23.76.0/24192.23.77.0/24192.23.78.0/24192.23.79.0/24