AS7018 12.131.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.131.152.0/2412.131.153.0/2412.131.154.0/2412.131.155.0/2412.131.156.0/2412.131.157.0/2412.131.158.0/2412.131.159.0/24