AS23 138.193.173.0/24 CIDR and IP Range Summary.ASN: 23 - National Aeronautics and Space AdministrationHost Count: 254Addressable IPs: 256 138.193.173.0138.193.173.1138.193.173.2138.193.173.3138.193.173.4138.193.173.5138.193.173.6138.193.173.7138.193.173.8138.193.173.9138.193.173.10138.193.173.11138.193.173.12138.193.173.13138.193.173.14138.193.173.15138.193.173.16138.193.173.17138.193.173.18138.193.173.19138.193.173.20138.193.173.21138.193.173.22138.193.173.23138.193.173.24138.193.173.25138.193.173.26138.193.173.27138.193.173.28138.193.173.29138.193.173.30138.193.173.31138.193.173.32138.193.173.33138.193.173.34138.193.173.35138.193.173.36138.193.173.37138.193.173.38138.193.173.39138.193.173.40138.193.173.41138.193.173.42138.193.173.43138.193.173.44138.193.173.45138.193.173.46138.193.173.47138.193.173.48138.193.173.49138.193.173.50138.193.173.51138.193.173.52138.193.173.53138.193.173.54138.193.173.55138.193.173.56138.193.173.57138.193.173.58138.193.173.59138.193.173.60138.193.173.61138.193.173.62138.193.173.63138.193.173.64138.193.173.65138.193.173.66138.193.173.67138.193.173.68138.193.173.69138.193.173.70138.193.173.71138.193.173.72138.193.173.73138.193.173.74138.193.173.75138.193.173.76138.193.173.77138.193.173.78138.193.173.79138.193.173.80138.193.173.81138.193.173.82138.193.173.83138.193.173.84138.193.173.85138.193.173.86138.193.173.87138.193.173.88138.193.173.89138.193.173.90138.193.173.91138.193.173.92138.193.173.93138.193.173.94138.193.173.95138.193.173.96138.193.173.97138.193.173.98138.193.173.99138.193.173.100138.193.173.101138.193.173.102138.193.173.103138.193.173.104138.193.173.105138.193.173.106138.193.173.107138.193.173.108138.193.173.109138.193.173.110138.193.173.111138.193.173.112138.193.173.113138.193.173.114138.193.173.115138.193.173.116138.193.173.117138.193.173.118138.193.173.119138.193.173.120138.193.173.121138.193.173.122138.193.173.123138.193.173.124138.193.173.125138.193.173.126138.193.173.127138.193.173.128138.193.173.129138.193.173.130138.193.173.131138.193.173.132138.193.173.133138.193.173.134138.193.173.135138.193.173.136138.193.173.137138.193.173.138138.193.173.139138.193.173.140138.193.173.141138.193.173.142138.193.173.143138.193.173.144138.193.173.145138.193.173.146138.193.173.147138.193.173.148138.193.173.149138.193.173.150138.193.173.151138.193.173.152138.193.173.153138.193.173.154138.193.173.155138.193.173.156138.193.173.157138.193.173.158138.193.173.159138.193.173.160138.193.173.161138.193.173.162138.193.173.163138.193.173.164138.193.173.165138.193.173.166138.193.173.167138.193.173.168138.193.173.169138.193.173.170138.193.173.171138.193.173.172138.193.173.173138.193.173.174138.193.173.175138.193.173.176138.193.173.177138.193.173.178138.193.173.179138.193.173.180138.193.173.181138.193.173.182138.193.173.183138.193.173.184138.193.173.185138.193.173.186138.193.173.187138.193.173.188138.193.173.189138.193.173.190138.193.173.191138.193.173.192138.193.173.193138.193.173.194138.193.173.195138.193.173.196138.193.173.197138.193.173.198138.193.173.199138.193.173.200138.193.173.201138.193.173.202138.193.173.203138.193.173.204138.193.173.205138.193.173.206138.193.173.207138.193.173.208138.193.173.209138.193.173.210138.193.173.211138.193.173.212138.193.173.213138.193.173.214138.193.173.215138.193.173.216138.193.173.217138.193.173.218138.193.173.219138.193.173.220138.193.173.221138.193.173.222138.193.173.223138.193.173.224138.193.173.225138.193.173.226138.193.173.227138.193.173.228138.193.173.229138.193.173.230138.193.173.231138.193.173.232138.193.173.233138.193.173.234138.193.173.235138.193.173.236138.193.173.237138.193.173.238138.193.173.239138.193.173.240138.193.173.241138.193.173.242138.193.173.243138.193.173.244138.193.173.245138.193.173.246138.193.173.247138.193.173.248138.193.173.249138.193.173.250138.193.173.251138.193.173.252138.193.173.253138.193.173.254138.193.173.255