AS135357 154.203.8.0/21 CIDR and IP Range Summary.ASN: 135357 - Shenzhen Katherine Heng Technology Information CoHost Count: 2046Addressable IPs: 2048154.203.8.0/24154.203.9.0/24154.203.10.0/24154.203.11.0/24154.203.12.0/24154.203.13.0/24154.203.14.0/24154.203.15.0/24