AS16399 66.244.160.0/19 CIDR and IP Range Summary.ASN: 16399 - First Communications LLCHost Count: 8190Addressable IPs: 819266.244.160.0/2466.244.161.0/2466.244.162.0/2466.244.163.0/2466.244.164.0/2466.244.165.0/2466.244.166.0/2466.244.167.0/2466.244.168.0/2466.244.169.0/2466.244.170.0/2466.244.171.0/2466.244.172.0/2466.244.173.0/2466.244.174.0/2466.244.175.0/2466.244.176.0/2466.244.177.0/2466.244.178.0/2466.244.179.0/2466.244.180.0/2466.244.181.0/2466.244.182.0/2466.244.183.0/2466.244.184.0/2466.244.185.0/2466.244.186.0/2466.244.187.0/2466.244.188.0/2466.244.189.0/2466.244.190.0/2466.244.191.0/24