AS25993 144.60.168.0/21 CIDR and IP Range Summary.ASN: 25993 - AT&T Labs Inc.Host Count: 2046Addressable IPs: 2048144.60.168.0/24144.60.169.0/24144.60.170.0/24144.60.171.0/24144.60.172.0/24144.60.173.0/24144.60.174.0/24144.60.175.0/24