AS7018 12.10.40.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.10.40.0/2412.10.41.0/2412.10.42.0/2412.10.43.0/2412.10.44.0/2412.10.45.0/2412.10.46.0/2412.10.47.0/24