AS7018 12.219.56.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.219.56.0/2412.219.57.0/2412.219.58.0/2412.219.59.0/2412.219.60.0/2412.219.61.0/2412.219.62.0/2412.219.63.0/24