AS7018 207.243.8.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048207.243.8.0/24207.243.9.0/24207.243.10.0/24207.243.11.0/24207.243.12.0/24207.243.13.0/24207.243.14.0/24207.243.15.0/24