AS16681 144.81.53.0/24 CIDR and IP Range Summary.ASN: 16681 - Educational Testing ServiceHost Count: 254Addressable IPs: 256 144.81.53.0144.81.53.1144.81.53.2144.81.53.3144.81.53.4144.81.53.5144.81.53.6144.81.53.7144.81.53.8144.81.53.9144.81.53.10144.81.53.11144.81.53.12144.81.53.13144.81.53.14144.81.53.15144.81.53.16144.81.53.17144.81.53.18144.81.53.19144.81.53.20144.81.53.21144.81.53.22144.81.53.23144.81.53.24144.81.53.25144.81.53.26144.81.53.27144.81.53.28144.81.53.29144.81.53.30144.81.53.31144.81.53.32144.81.53.33144.81.53.34144.81.53.35144.81.53.36144.81.53.37144.81.53.38144.81.53.39144.81.53.40144.81.53.41144.81.53.42144.81.53.43144.81.53.44144.81.53.45144.81.53.46144.81.53.47144.81.53.48144.81.53.49144.81.53.50144.81.53.51144.81.53.52144.81.53.53144.81.53.54144.81.53.55144.81.53.56144.81.53.57144.81.53.58144.81.53.59144.81.53.60144.81.53.61144.81.53.62144.81.53.63144.81.53.64144.81.53.65144.81.53.66144.81.53.67144.81.53.68144.81.53.69144.81.53.70144.81.53.71144.81.53.72144.81.53.73144.81.53.74144.81.53.75144.81.53.76144.81.53.77144.81.53.78144.81.53.79144.81.53.80144.81.53.81144.81.53.82144.81.53.83144.81.53.84144.81.53.85144.81.53.86144.81.53.87144.81.53.88144.81.53.89144.81.53.90144.81.53.91144.81.53.92144.81.53.93144.81.53.94144.81.53.95144.81.53.96144.81.53.97144.81.53.98144.81.53.99144.81.53.100144.81.53.101144.81.53.102144.81.53.103144.81.53.104144.81.53.105144.81.53.106144.81.53.107144.81.53.108144.81.53.109144.81.53.110144.81.53.111144.81.53.112144.81.53.113144.81.53.114144.81.53.115144.81.53.116144.81.53.117144.81.53.118144.81.53.119144.81.53.120144.81.53.121144.81.53.122144.81.53.123144.81.53.124144.81.53.125144.81.53.126144.81.53.127144.81.53.128144.81.53.129144.81.53.130144.81.53.131144.81.53.132144.81.53.133144.81.53.134144.81.53.135144.81.53.136144.81.53.137144.81.53.138144.81.53.139144.81.53.140144.81.53.141144.81.53.142144.81.53.143144.81.53.144144.81.53.145144.81.53.146144.81.53.147144.81.53.148144.81.53.149144.81.53.150144.81.53.151144.81.53.152144.81.53.153144.81.53.154144.81.53.155144.81.53.156144.81.53.157144.81.53.158144.81.53.159144.81.53.160144.81.53.161144.81.53.162144.81.53.163144.81.53.164144.81.53.165144.81.53.166144.81.53.167144.81.53.168144.81.53.169144.81.53.170144.81.53.171144.81.53.172144.81.53.173144.81.53.174144.81.53.175144.81.53.176144.81.53.177144.81.53.178144.81.53.179144.81.53.180144.81.53.181144.81.53.182144.81.53.183144.81.53.184144.81.53.185144.81.53.186144.81.53.187144.81.53.188144.81.53.189144.81.53.190144.81.53.191144.81.53.192144.81.53.193144.81.53.194144.81.53.195144.81.53.196144.81.53.197144.81.53.198144.81.53.199144.81.53.200144.81.53.201144.81.53.202144.81.53.203144.81.53.204144.81.53.205144.81.53.206144.81.53.207144.81.53.208144.81.53.209144.81.53.210144.81.53.211144.81.53.212144.81.53.213144.81.53.214144.81.53.215144.81.53.216144.81.53.217144.81.53.218144.81.53.219144.81.53.220144.81.53.221144.81.53.222144.81.53.223144.81.53.224144.81.53.225144.81.53.226144.81.53.227144.81.53.228144.81.53.229144.81.53.230144.81.53.231144.81.53.232144.81.53.233144.81.53.234144.81.53.235144.81.53.236144.81.53.237144.81.53.238144.81.53.239144.81.53.240144.81.53.241144.81.53.242144.81.53.243144.81.53.244144.81.53.245144.81.53.246144.81.53.247144.81.53.248144.81.53.249144.81.53.250144.81.53.251144.81.53.252144.81.53.253144.81.53.254144.81.53.255