AS13768 72.51.0.0/20 CIDR and IP Range Summary.ASN: 13768 - Aptum TechnologiesHost Count: 4094Addressable IPs: 409672.51.0.0/2472.51.1.0/2472.51.2.0/2472.51.3.0/2472.51.4.0/2472.51.5.0/2472.51.6.0/2472.51.7.0/2472.51.8.0/2472.51.9.0/2472.51.10.0/2472.51.11.0/2472.51.12.0/2472.51.13.0/2472.51.14.0/2472.51.15.0/24