AS7018 12.139.88.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.139.88.0/2412.139.89.0/2412.139.90.0/2412.139.91.0/2412.139.92.0/2412.139.93.0/2412.139.94.0/2412.139.95.0/24