AS7018 74.239.16.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409674.239.16.0/2474.239.17.0/2474.239.18.0/2474.239.19.0/2474.239.20.0/2474.239.21.0/2474.239.22.0/2474.239.23.0/2474.239.24.0/2474.239.25.0/2474.239.26.0/2474.239.27.0/2474.239.28.0/2474.239.29.0/2474.239.30.0/2474.239.31.0/24