AS17225 135.12.0.0/21 CIDR and IP Range Summary.ASN: 17225 - AT&T Enhanced Network ServicesHost Count: 2046Addressable IPs: 2048135.12.0.0/24135.12.1.0/24135.12.2.0/24135.12.3.0/24135.12.4.0/24135.12.5.0/24135.12.6.0/24135.12.7.0/24