AS4237 20.139.72.0/21 CIDR and IP Range Summary.ASN: 4237 - DXC US Latin America CorporationHost Count: 2046Addressable IPs: 204820.139.72.0/2420.139.73.0/2420.139.74.0/2420.139.75.0/2420.139.76.0/2420.139.77.0/2420.139.78.0/2420.139.79.0/24