AS17231 12.66.31.240/28 CIDR and IP Range Summary.ASN: 17231 - AT&T Enhanced Network ServicesHost Count: 14Addressable IPs: 16 12.66.31.24112.66.31.24212.66.31.24312.66.31.24412.66.31.24512.66.31.24612.66.31.24712.66.31.24812.66.31.24912.66.31.25012.66.31.25112.66.31.25212.66.31.25312.66.31.25412.66.31.25512.66.31.256