AS23 138.193.121.0/24 CIDR and IP Range Summary.ASN: 23 - National Aeronautics and Space AdministrationHost Count: 254Addressable IPs: 256 138.193.121.0138.193.121.1138.193.121.2138.193.121.3138.193.121.4138.193.121.5138.193.121.6138.193.121.7138.193.121.8138.193.121.9138.193.121.10138.193.121.11138.193.121.12138.193.121.13138.193.121.14138.193.121.15138.193.121.16138.193.121.17138.193.121.18138.193.121.19138.193.121.20138.193.121.21138.193.121.22138.193.121.23138.193.121.24138.193.121.25138.193.121.26138.193.121.27138.193.121.28138.193.121.29138.193.121.30138.193.121.31138.193.121.32138.193.121.33138.193.121.34138.193.121.35138.193.121.36138.193.121.37138.193.121.38138.193.121.39138.193.121.40138.193.121.41138.193.121.42138.193.121.43138.193.121.44138.193.121.45138.193.121.46138.193.121.47138.193.121.48138.193.121.49138.193.121.50138.193.121.51138.193.121.52138.193.121.53138.193.121.54138.193.121.55138.193.121.56138.193.121.57138.193.121.58138.193.121.59138.193.121.60138.193.121.61138.193.121.62138.193.121.63138.193.121.64138.193.121.65138.193.121.66138.193.121.67138.193.121.68138.193.121.69138.193.121.70138.193.121.71138.193.121.72138.193.121.73138.193.121.74138.193.121.75138.193.121.76138.193.121.77138.193.121.78138.193.121.79138.193.121.80138.193.121.81138.193.121.82138.193.121.83138.193.121.84138.193.121.85138.193.121.86138.193.121.87138.193.121.88138.193.121.89138.193.121.90138.193.121.91138.193.121.92138.193.121.93138.193.121.94138.193.121.95138.193.121.96138.193.121.97138.193.121.98138.193.121.99138.193.121.100138.193.121.101138.193.121.102138.193.121.103138.193.121.104138.193.121.105138.193.121.106138.193.121.107138.193.121.108138.193.121.109138.193.121.110138.193.121.111138.193.121.112138.193.121.113138.193.121.114138.193.121.115138.193.121.116138.193.121.117138.193.121.118138.193.121.119138.193.121.120138.193.121.121138.193.121.122138.193.121.123138.193.121.124138.193.121.125138.193.121.126138.193.121.127138.193.121.128138.193.121.129138.193.121.130138.193.121.131138.193.121.132138.193.121.133138.193.121.134138.193.121.135138.193.121.136138.193.121.137138.193.121.138138.193.121.139138.193.121.140138.193.121.141138.193.121.142138.193.121.143138.193.121.144138.193.121.145138.193.121.146138.193.121.147138.193.121.148138.193.121.149138.193.121.150138.193.121.151138.193.121.152138.193.121.153138.193.121.154138.193.121.155138.193.121.156138.193.121.157138.193.121.158138.193.121.159138.193.121.160138.193.121.161138.193.121.162138.193.121.163138.193.121.164138.193.121.165138.193.121.166138.193.121.167138.193.121.168138.193.121.169138.193.121.170138.193.121.171138.193.121.172138.193.121.173138.193.121.174138.193.121.175138.193.121.176138.193.121.177138.193.121.178138.193.121.179138.193.121.180138.193.121.181138.193.121.182138.193.121.183138.193.121.184138.193.121.185138.193.121.186138.193.121.187138.193.121.188138.193.121.189138.193.121.190138.193.121.191138.193.121.192138.193.121.193138.193.121.194138.193.121.195138.193.121.196138.193.121.197138.193.121.198138.193.121.199138.193.121.200138.193.121.201138.193.121.202138.193.121.203138.193.121.204138.193.121.205138.193.121.206138.193.121.207138.193.121.208138.193.121.209138.193.121.210138.193.121.211138.193.121.212138.193.121.213138.193.121.214138.193.121.215138.193.121.216138.193.121.217138.193.121.218138.193.121.219138.193.121.220138.193.121.221138.193.121.222138.193.121.223138.193.121.224138.193.121.225138.193.121.226138.193.121.227138.193.121.228138.193.121.229138.193.121.230138.193.121.231138.193.121.232138.193.121.233138.193.121.234138.193.121.235138.193.121.236138.193.121.237138.193.121.238138.193.121.239138.193.121.240138.193.121.241138.193.121.242138.193.121.243138.193.121.244138.193.121.245138.193.121.246138.193.121.247138.193.121.248138.193.121.249138.193.121.250138.193.121.251138.193.121.252138.193.121.253138.193.121.254138.193.121.255