AS6389 66.156.192.0/21 CIDR and IP Range Summary.ASN: 6389 - Bellsouth.net Inc.Host Count: 2046Addressable IPs: 204866.156.192.0/2466.156.193.0/2466.156.194.0/2466.156.195.0/2466.156.196.0/2466.156.197.0/2466.156.198.0/2466.156.199.0/24