AS7018 12.144.24.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.144.24.0/2412.144.25.0/2412.144.26.0/2412.144.27.0/2412.144.28.0/2412.144.29.0/2412.144.30.0/2412.144.31.0/24