AS7018 12.43.40.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.43.40.0/2412.43.41.0/2412.43.42.0/2412.43.43.0/2412.43.44.0/2412.43.45.0/2412.43.46.0/2412.43.47.0/24