AS7018 66.161.64.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204866.161.64.0/2466.161.65.0/2466.161.66.0/2466.161.67.0/2466.161.68.0/2466.161.69.0/2466.161.70.0/2466.161.71.0/24