AS7018 12.166.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.166.248.0/2412.166.249.0/2412.166.250.0/2412.166.251.0/2412.166.252.0/2412.166.253.0/2412.166.254.0/2412.166.255.0/24