AS23744 162.145.72.0/21 CIDR and IP Range Summary.ASN: 23744 - Australian Customs and Border Protection ServiceHost Count: 2046Addressable IPs: 2048162.145.72.0/24162.145.73.0/24162.145.74.0/24162.145.75.0/24162.145.76.0/24162.145.77.0/24162.145.78.0/24162.145.79.0/24