AS17559 163.53.21.0/24 CIDR and IP Range Summary.ASN: 17559 - Spectrums Core NetworkHost Count: 254Addressable IPs: 256 163.53.21.0163.53.21.1163.53.21.2163.53.21.3163.53.21.4163.53.21.5163.53.21.6163.53.21.7163.53.21.8163.53.21.9163.53.21.10163.53.21.11163.53.21.12163.53.21.13163.53.21.14163.53.21.15163.53.21.16163.53.21.17163.53.21.18163.53.21.19163.53.21.20163.53.21.21163.53.21.22163.53.21.23163.53.21.24163.53.21.25163.53.21.26163.53.21.27163.53.21.28163.53.21.29163.53.21.30163.53.21.31163.53.21.32163.53.21.33163.53.21.34163.53.21.35163.53.21.36163.53.21.37163.53.21.38163.53.21.39163.53.21.40163.53.21.41163.53.21.42163.53.21.43163.53.21.44163.53.21.45163.53.21.46163.53.21.47163.53.21.48163.53.21.49163.53.21.50163.53.21.51163.53.21.52163.53.21.53163.53.21.54163.53.21.55163.53.21.56163.53.21.57163.53.21.58163.53.21.59163.53.21.60163.53.21.61163.53.21.62163.53.21.63163.53.21.64163.53.21.65163.53.21.66163.53.21.67163.53.21.68163.53.21.69163.53.21.70163.53.21.71163.53.21.72163.53.21.73163.53.21.74163.53.21.75163.53.21.76163.53.21.77163.53.21.78163.53.21.79163.53.21.80163.53.21.81163.53.21.82163.53.21.83163.53.21.84163.53.21.85163.53.21.86163.53.21.87163.53.21.88163.53.21.89163.53.21.90163.53.21.91163.53.21.92163.53.21.93163.53.21.94163.53.21.95163.53.21.96163.53.21.97163.53.21.98163.53.21.99163.53.21.100163.53.21.101163.53.21.102163.53.21.103163.53.21.104163.53.21.105163.53.21.106163.53.21.107163.53.21.108163.53.21.109163.53.21.110163.53.21.111163.53.21.112163.53.21.113163.53.21.114163.53.21.115163.53.21.116163.53.21.117163.53.21.118163.53.21.119163.53.21.120163.53.21.121163.53.21.122163.53.21.123163.53.21.124163.53.21.125163.53.21.126163.53.21.127163.53.21.128163.53.21.129163.53.21.130163.53.21.131163.53.21.132163.53.21.133163.53.21.134163.53.21.135163.53.21.136163.53.21.137163.53.21.138163.53.21.139163.53.21.140163.53.21.141163.53.21.142163.53.21.143163.53.21.144163.53.21.145163.53.21.146163.53.21.147163.53.21.148163.53.21.149163.53.21.150163.53.21.151163.53.21.152163.53.21.153163.53.21.154163.53.21.155163.53.21.156163.53.21.157163.53.21.158163.53.21.159163.53.21.160163.53.21.161163.53.21.162163.53.21.163163.53.21.164163.53.21.165163.53.21.166163.53.21.167163.53.21.168163.53.21.169163.53.21.170163.53.21.171163.53.21.172163.53.21.173163.53.21.174163.53.21.175163.53.21.176163.53.21.177163.53.21.178163.53.21.179163.53.21.180163.53.21.181163.53.21.182163.53.21.183163.53.21.184163.53.21.185163.53.21.186163.53.21.187163.53.21.188163.53.21.189163.53.21.190163.53.21.191163.53.21.192163.53.21.193163.53.21.194163.53.21.195163.53.21.196163.53.21.197163.53.21.198163.53.21.199163.53.21.200163.53.21.201163.53.21.202163.53.21.203163.53.21.204163.53.21.205163.53.21.206163.53.21.207163.53.21.208163.53.21.209163.53.21.210163.53.21.211163.53.21.212163.53.21.213163.53.21.214163.53.21.215163.53.21.216163.53.21.217163.53.21.218163.53.21.219163.53.21.220163.53.21.221163.53.21.222163.53.21.223163.53.21.224163.53.21.225163.53.21.226163.53.21.227163.53.21.228163.53.21.229163.53.21.230163.53.21.231163.53.21.232163.53.21.233163.53.21.234163.53.21.235163.53.21.236163.53.21.237163.53.21.238163.53.21.239163.53.21.240163.53.21.241163.53.21.242163.53.21.243163.53.21.244163.53.21.245163.53.21.246163.53.21.247163.53.21.248163.53.21.249163.53.21.250163.53.21.251163.53.21.252163.53.21.253163.53.21.254163.53.21.255