AS23 138.193.253.0/24 CIDR and IP Range Summary.ASN: 23 - National Aeronautics and Space AdministrationHost Count: 254Addressable IPs: 256 138.193.253.0138.193.253.1138.193.253.2138.193.253.3138.193.253.4138.193.253.5138.193.253.6138.193.253.7138.193.253.8138.193.253.9138.193.253.10138.193.253.11138.193.253.12138.193.253.13138.193.253.14138.193.253.15138.193.253.16138.193.253.17138.193.253.18138.193.253.19138.193.253.20138.193.253.21138.193.253.22138.193.253.23138.193.253.24138.193.253.25138.193.253.26138.193.253.27138.193.253.28138.193.253.29138.193.253.30138.193.253.31138.193.253.32138.193.253.33138.193.253.34138.193.253.35138.193.253.36138.193.253.37138.193.253.38138.193.253.39138.193.253.40138.193.253.41138.193.253.42138.193.253.43138.193.253.44138.193.253.45138.193.253.46138.193.253.47138.193.253.48138.193.253.49138.193.253.50138.193.253.51138.193.253.52138.193.253.53138.193.253.54138.193.253.55138.193.253.56138.193.253.57138.193.253.58138.193.253.59138.193.253.60138.193.253.61138.193.253.62138.193.253.63138.193.253.64138.193.253.65138.193.253.66138.193.253.67138.193.253.68138.193.253.69138.193.253.70138.193.253.71138.193.253.72138.193.253.73138.193.253.74138.193.253.75138.193.253.76138.193.253.77138.193.253.78138.193.253.79138.193.253.80138.193.253.81138.193.253.82138.193.253.83138.193.253.84138.193.253.85138.193.253.86138.193.253.87138.193.253.88138.193.253.89138.193.253.90138.193.253.91138.193.253.92138.193.253.93138.193.253.94138.193.253.95138.193.253.96138.193.253.97138.193.253.98138.193.253.99138.193.253.100138.193.253.101138.193.253.102138.193.253.103138.193.253.104138.193.253.105138.193.253.106138.193.253.107138.193.253.108138.193.253.109138.193.253.110138.193.253.111138.193.253.112138.193.253.113138.193.253.114138.193.253.115138.193.253.116138.193.253.117138.193.253.118138.193.253.119138.193.253.120138.193.253.121138.193.253.122138.193.253.123138.193.253.124138.193.253.125138.193.253.126138.193.253.127138.193.253.128138.193.253.129138.193.253.130138.193.253.131138.193.253.132138.193.253.133138.193.253.134138.193.253.135138.193.253.136138.193.253.137138.193.253.138138.193.253.139138.193.253.140138.193.253.141138.193.253.142138.193.253.143138.193.253.144138.193.253.145138.193.253.146138.193.253.147138.193.253.148138.193.253.149138.193.253.150138.193.253.151138.193.253.152138.193.253.153138.193.253.154138.193.253.155138.193.253.156138.193.253.157138.193.253.158138.193.253.159138.193.253.160138.193.253.161138.193.253.162138.193.253.163138.193.253.164138.193.253.165138.193.253.166138.193.253.167138.193.253.168138.193.253.169138.193.253.170138.193.253.171138.193.253.172138.193.253.173138.193.253.174138.193.253.175138.193.253.176138.193.253.177138.193.253.178138.193.253.179138.193.253.180138.193.253.181138.193.253.182138.193.253.183138.193.253.184138.193.253.185138.193.253.186138.193.253.187138.193.253.188138.193.253.189138.193.253.190138.193.253.191138.193.253.192138.193.253.193138.193.253.194138.193.253.195138.193.253.196138.193.253.197138.193.253.198138.193.253.199138.193.253.200138.193.253.201138.193.253.202138.193.253.203138.193.253.204138.193.253.205138.193.253.206138.193.253.207138.193.253.208138.193.253.209138.193.253.210138.193.253.211138.193.253.212138.193.253.213138.193.253.214138.193.253.215138.193.253.216138.193.253.217138.193.253.218138.193.253.219138.193.253.220138.193.253.221138.193.253.222138.193.253.223138.193.253.224138.193.253.225138.193.253.226138.193.253.227138.193.253.228138.193.253.229138.193.253.230138.193.253.231138.193.253.232138.193.253.233138.193.253.234138.193.253.235138.193.253.236138.193.253.237138.193.253.238138.193.253.239138.193.253.240138.193.253.241138.193.253.242138.193.253.243138.193.253.244138.193.253.245138.193.253.246138.193.253.247138.193.253.248138.193.253.249138.193.253.250138.193.253.251138.193.253.252138.193.253.253138.193.253.254138.193.253.255