AS7018 12.40.120.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.40.120.0/2412.40.121.0/2412.40.122.0/2412.40.123.0/2412.40.124.0/2412.40.125.0/2412.40.126.0/2412.40.127.0/24