AS7018 12.176.16.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.176.16.0/2412.176.17.0/2412.176.18.0/2412.176.19.0/2412.176.20.0/2412.176.21.0/2412.176.22.0/2412.176.23.0/24