AS7018 66.120.16.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204866.120.16.0/2466.120.17.0/2466.120.18.0/2466.120.19.0/2466.120.20.0/2466.120.21.0/2466.120.22.0/2466.120.23.0/24