AS23 138.193.53.0/24 CIDR and IP Range Summary.ASN: 23 - National Aeronautics and Space AdministrationHost Count: 254Addressable IPs: 256 138.193.53.0138.193.53.1138.193.53.2138.193.53.3138.193.53.4138.193.53.5138.193.53.6138.193.53.7138.193.53.8138.193.53.9138.193.53.10138.193.53.11138.193.53.12138.193.53.13138.193.53.14138.193.53.15138.193.53.16138.193.53.17138.193.53.18138.193.53.19138.193.53.20138.193.53.21138.193.53.22138.193.53.23138.193.53.24138.193.53.25138.193.53.26138.193.53.27138.193.53.28138.193.53.29138.193.53.30138.193.53.31138.193.53.32138.193.53.33138.193.53.34138.193.53.35138.193.53.36138.193.53.37138.193.53.38138.193.53.39138.193.53.40138.193.53.41138.193.53.42138.193.53.43138.193.53.44138.193.53.45138.193.53.46138.193.53.47138.193.53.48138.193.53.49138.193.53.50138.193.53.51138.193.53.52138.193.53.53138.193.53.54138.193.53.55138.193.53.56138.193.53.57138.193.53.58138.193.53.59138.193.53.60138.193.53.61138.193.53.62138.193.53.63138.193.53.64138.193.53.65138.193.53.66138.193.53.67138.193.53.68138.193.53.69138.193.53.70138.193.53.71138.193.53.72138.193.53.73138.193.53.74138.193.53.75138.193.53.76138.193.53.77138.193.53.78138.193.53.79138.193.53.80138.193.53.81138.193.53.82138.193.53.83138.193.53.84138.193.53.85138.193.53.86138.193.53.87138.193.53.88138.193.53.89138.193.53.90138.193.53.91138.193.53.92138.193.53.93138.193.53.94138.193.53.95138.193.53.96138.193.53.97138.193.53.98138.193.53.99138.193.53.100138.193.53.101138.193.53.102138.193.53.103138.193.53.104138.193.53.105138.193.53.106138.193.53.107138.193.53.108138.193.53.109138.193.53.110138.193.53.111138.193.53.112138.193.53.113138.193.53.114138.193.53.115138.193.53.116138.193.53.117138.193.53.118138.193.53.119138.193.53.120138.193.53.121138.193.53.122138.193.53.123138.193.53.124138.193.53.125138.193.53.126138.193.53.127138.193.53.128138.193.53.129138.193.53.130138.193.53.131138.193.53.132138.193.53.133138.193.53.134138.193.53.135138.193.53.136138.193.53.137138.193.53.138138.193.53.139138.193.53.140138.193.53.141138.193.53.142138.193.53.143138.193.53.144138.193.53.145138.193.53.146138.193.53.147138.193.53.148138.193.53.149138.193.53.150138.193.53.151138.193.53.152138.193.53.153138.193.53.154138.193.53.155138.193.53.156138.193.53.157138.193.53.158138.193.53.159138.193.53.160138.193.53.161138.193.53.162138.193.53.163138.193.53.164138.193.53.165138.193.53.166138.193.53.167138.193.53.168138.193.53.169138.193.53.170138.193.53.171138.193.53.172138.193.53.173138.193.53.174138.193.53.175138.193.53.176138.193.53.177138.193.53.178138.193.53.179138.193.53.180138.193.53.181138.193.53.182138.193.53.183138.193.53.184138.193.53.185138.193.53.186138.193.53.187138.193.53.188138.193.53.189138.193.53.190138.193.53.191138.193.53.192138.193.53.193138.193.53.194138.193.53.195138.193.53.196138.193.53.197138.193.53.198138.193.53.199138.193.53.200138.193.53.201138.193.53.202138.193.53.203138.193.53.204138.193.53.205138.193.53.206138.193.53.207138.193.53.208138.193.53.209138.193.53.210138.193.53.211138.193.53.212138.193.53.213138.193.53.214138.193.53.215138.193.53.216138.193.53.217138.193.53.218138.193.53.219138.193.53.220138.193.53.221138.193.53.222138.193.53.223138.193.53.224138.193.53.225138.193.53.226138.193.53.227138.193.53.228138.193.53.229138.193.53.230138.193.53.231138.193.53.232138.193.53.233138.193.53.234138.193.53.235138.193.53.236138.193.53.237138.193.53.238138.193.53.239138.193.53.240138.193.53.241138.193.53.242138.193.53.243138.193.53.244138.193.53.245138.193.53.246138.193.53.247138.193.53.248138.193.53.249138.193.53.250138.193.53.251138.193.53.252138.193.53.253138.193.53.254138.193.53.255