AS7018 12.183.120.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.183.120.0/2412.183.121.0/2412.183.122.0/2412.183.123.0/2412.183.124.0/2412.183.125.0/2412.183.126.0/2412.183.127.0/24