AS7018 66.143.160.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204866.143.160.0/2466.143.161.0/2466.143.162.0/2466.143.163.0/2466.143.164.0/2466.143.165.0/2466.143.166.0/2466.143.167.0/24