AS135357 156.254.80.0/21 CIDR and IP Range Summary.ASN: 135357 - Shenzhen Katherine Heng Technology Information CoHost Count: 2046Addressable IPs: 2048156.254.80.0/24156.254.81.0/24156.254.82.0/24156.254.83.0/24156.254.84.0/24156.254.85.0/24156.254.86.0/24156.254.87.0/24