AS25993 144.60.128.0/21 CIDR and IP Range Summary.ASN: 25993 - AT&T Labs Inc.Host Count: 2046Addressable IPs: 2048144.60.128.0/24144.60.129.0/24144.60.130.0/24144.60.131.0/24144.60.132.0/24144.60.133.0/24144.60.134.0/24144.60.135.0/24