AS20436 74.51.64.0/19 CIDR and IP Range Summary.ASN: 20436 - Prairie Grove Telephone Co.Host Count: 8190Addressable IPs: 819274.51.64.0/2474.51.65.0/2474.51.66.0/2474.51.67.0/2474.51.68.0/2474.51.69.0/2474.51.70.0/2474.51.71.0/2474.51.72.0/2474.51.73.0/2474.51.74.0/2474.51.75.0/2474.51.76.0/2474.51.77.0/2474.51.78.0/2474.51.79.0/2474.51.80.0/2474.51.81.0/2474.51.82.0/2474.51.83.0/2474.51.84.0/2474.51.85.0/2474.51.86.0/2474.51.87.0/2474.51.88.0/2474.51.89.0/2474.51.90.0/2474.51.91.0/2474.51.92.0/2474.51.93.0/2474.51.94.0/2474.51.95.0/24