Summary
| ASN | AS3477 National Oceanic and Atmospheric Administration |
| BGP | 140.172.0.0/16 |
| IPs with RDNS | 128 |
| Hosted Domains | 0 |
| Pingable IPs | 10 |
| Router IPs | 3 |
| 140.172.3.0 | — | 0 |  | |
| 140.172.3.1 | — | 0 | | |
| 140.172.3.2 | — | 0 | | |
| 140.172.3.3 | — | 0 | | |
| 140.172.3.4 | — | 0 | | |
| 140.172.3.5 | — | 0 | | |
| 140.172.3.6 | — | 0 | | |
| 140.172.3.7 | — | 0 | | |
| 140.172.3.8 | — | 0 | | |
| 140.172.3.9 | — | 0 | | |
| 140.172.3.10 | — | 0 | | |
| 140.172.3.11 | — | 0 | | |
| 140.172.3.12 | — | 0 | | |
| 140.172.3.13 | — | 0 | | |
| 140.172.3.14 | — | 0 | | |
| 140.172.3.15 | — | 0 | | |
| 140.172.3.16 | class-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.17 | doc-rtr-class.boulder.noaa.gov | 0 | | |
| 140.172.3.18 | cosw01.boul01-irb-710.boulder.noaa.gov | 0 | | |
| 140.172.3.19 | cosw01.boul02-irb-710.boulder.noaa.gov | 0 | | |
| 140.172.3.20 | — | 0 | | |
| 140.172.3.21 | — | 0 | | |
| 140.172.3.22 | — | 0 | | |
| 140.172.3.23 | — | 0 | | |
| 140.172.3.24 | — | 0 | | |
| 140.172.3.25 | cosw01.boul01-irb-317.boulder.noaa.gov | 0 | | |
| 140.172.3.26 | cosw01.boul02-irb-317.boulder.noaa.gov | 0 |  | |
| 140.172.3.27 | ncei-co-vlan-317.boulder.noaa.gov | 0 | | |
| 140.172.3.28 | — | 0 | | |
| 140.172.3.29 | — | 0 | | |
| 140.172.3.30 | 1b601-6509.boulder.noaa.gov | 0 | | |
| 140.172.3.31 | — | 0 | | |
| 140.172.3.32 | dsrc-ncsc-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.33 | — | 0 | | |
| 140.172.3.34 | cosw01.boul02-irb-318.boulder.noaa.gov | 0 | | |
| 140.172.3.35 | ncei-co-vlan-318.boulder.noaa.gov | 0 | | |
| 140.172.3.36 | — | 0 | | |
| 140.172.3.37 | — | 0 | | |
| 140.172.3.38 | — | 0 | | |
| 140.172.3.39 | — | 0 | | |
| 140.172.3.40 | — | 0 | | |
| 140.172.3.41 | — | 0 | | |
| 140.172.3.42 | — | 0 | | |
| 140.172.3.43 | — | 0 | | |
| 140.172.3.44 | — | 0 | | |
| 140.172.3.45 | — | 0 | | |
| 140.172.3.46 | — | 0 | | |
| 140.172.3.47 | dsrc-ncsc.boulder.noaa.gov | 0 | | |
| 140.172.3.48 | gsa-vpn-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.49 | mdf-rtr-gsa.boulder.noaa.gov | 0 | | |
| 140.172.3.50 | dsrc-gsa-vpn2.boulder.noaa.gov | 0 | | |
| 140.172.3.51 | dsrc-gsa-vpn.boulder.noaa.gov | 0 | | |
| 140.172.3.52 | — | 0 | | |
| 140.172.3.53 | — | 0 | | |
| 140.172.3.54 | — | 0 | | |
| 140.172.3.55 | — | 0 | | |
| 140.172.3.56 | — | 0 | | |
| 140.172.3.57 | — | 0 | | |
| 140.172.3.58 | — | 0 | | |
| 140.172.3.59 | — | 0 | | |
| 140.172.3.60 | — | 0 | | |
| 140.172.3.61 | — | 0 | | |
| 140.172.3.62 | — | 0 | | |
| 140.172.3.63 | — | 0 | | |
| 140.172.3.64 | ncdc-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.65 | brtr.boul-ncdc.boulder.noaa.gov | 0 | | |
| 140.172.3.66 | ncdc-1.boulder.noaa.gov | 0 | | |
| 140.172.3.67 | — | 0 | | |
| 140.172.3.68 | — | 0 | | |
| 140.172.3.69 | — | 0 | | |
| 140.172.3.70 | — | 0 | | |
| 140.172.3.71 | — | 0 | | |
| 140.172.3.72 | — | 0 | | |
| 140.172.3.73 | — | 0 | | |
| 140.172.3.74 | — | 0 | | |
| 140.172.3.75 | — | 0 | | |
| 140.172.3.76 | — | 0 | | |
| 140.172.3.77 | — | 0 | | |
| 140.172.3.78 | — | 0 | | |
| 140.172.3.79 | — | 0 | | |
| 140.172.3.80 | nwave-lab-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.81 | — | 0 | | |
| 140.172.3.82 | — | 0 | | |
| 140.172.3.83 | — | 0 | | |
| 140.172.3.84 | — | 0 | | |
| 140.172.3.85 | — | 0 | | |
| 140.172.3.86 | — | 0 | | |
| 140.172.3.87 | — | 0 | | |
| 140.172.3.88 | — | 0 | | |
| 140.172.3.89 | — | 0 | | |
| 140.172.3.90 | wandl.boulder.noaa.gov | 0 | | |
| 140.172.3.91 | — | 0 | | |
| 140.172.3.92 | — | 0 | | |
| 140.172.3.93 | — | 0 | | |
| 140.172.3.94 | bastion.blab.nwave.noaa.gov | 0 | | |
| 140.172.3.95 | nwave-lab-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.96 | class-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.97 | mdf-mlx8-class-asa.boulder.noaa.gov | 0 | | |
| 140.172.3.98 | class-asa-mdf-mlx8.boulder.noaa.gov | 0 | | |
| 140.172.3.99 | — | 0 | | |
| 140.172.3.100 | — | 0 | | |
| 140.172.3.101 | — | 0 | | |
| 140.172.3.102 | — | 0 | | |
| 140.172.3.103 | — | 0 | | |
| 140.172.3.104 | class-ng-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.105 | bnoc-class-vrrp.boulder.noaa.gov | 0 | | |
| 140.172.3.106 | mdf-mlx8-eth-1-6.boulder.noaa.gov | 0 | | |
| 140.172.3.107 | — | 0 | | |
| 140.172.3.108 | — | 0 | | |
| 140.172.3.109 | — | 0 | | |
| 140.172.3.110 | 1b601-7010-class.boulder.noaa.gov | 0 | | |
| 140.172.3.111 | class-ng-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.112 | ncep-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.113 | mdf-mlx8-eth-2-8.boulder.noaa.gov | 0 | | |
| 140.172.3.114 | ncep-fw-1.boulder.noaa.gov | 0 | | |
| 140.172.3.115 | ncep-mdf-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.116 | ncep-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.117 | 2001-mlx8-eth-2-8.boulder.noaa.gov | 0 | | |
| 140.172.3.118 | ncep-fw-2.boulder.noaa.gov | 0 | | |
| 140.172.3.119 | ncep-2001-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.120 | ncep-vpn-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.121 | ncep-vpn-mdf-subnet-bnoc.boulder.noaa.gov | 0 | | |
| 140.172.3.122 | ncep-vpn-mdf-subnet-ncep.boulder.noaa.gov | 0 | | |
| 140.172.3.123 | ncep-vpn-mdf-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.124 | ncep-vpn-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.125 | ncep-vpn-2001-subnet-bnoc.boulder.noaa.gov | 0 | | |
| 140.172.3.126 | ncep-vpn-2001-subnet-ncep.boulder.noaa.gov | 0 | | |
| 140.172.3.127 | ncep-vpn-2001-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.128 | — | 0 | | |
| 140.172.3.129 | — | 0 | | |
| 140.172.3.130 | — | 0 | | |
| 140.172.3.131 | — | 0 | | |
| 140.172.3.132 | inside-network.boulder.noaa.gov | 0 | | |
| 140.172.3.133 | inside-router.boulder.noaa.gov | 0 | | |
| 140.172.3.134 | inside-theword.boulder.noaa.gov | 0 | | |
| 140.172.3.135 | inside-broadcast.boulder.noaa.gov | 0 | | |
| 140.172.3.136 | cac-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.137 | — | 0 | | |
| 140.172.3.138 | — | 0 | | |
| 140.172.3.139 | — | 0 | | |
| 140.172.3.140 | 175862-001.boulder.noaa.gov | 0 | | |
| 140.172.3.141 | — | 0 | | |
| 140.172.3.142 | — | 0 | | |
| 140.172.3.143 | cac-broadcast.boulder.noaa.gov | 0 | | |
| 140.172.3.144 | — | 0 | | |
| 140.172.3.145 | — | 0 | | |
| 140.172.3.146 | — | 0 | | |
| 140.172.3.147 | — | 0 | | |
| 140.172.3.148 | — | 0 | | |
| 140.172.3.149 | — | 0 | | |
| 140.172.3.150 | — | 0 | | |
| 140.172.3.151 | — | 0 | | |
| 140.172.3.152 | — | 0 | | |
| 140.172.3.153 | — | 0 | | |
| 140.172.3.154 | — | 0 | | |
| 140.172.3.155 | — | 0 | | |
| 140.172.3.156 | — | 0 | | |
| 140.172.3.157 | — | 0 | | |
| 140.172.3.158 | — | 0 | | |
| 140.172.3.159 | — | 0 | | |
| 140.172.3.160 | mdf-mlx8-eth-3-2.boulder.noaa.gov | 0 | | |
| 140.172.3.161 | ncep-fw-eth1.boulder.noaa.gov | 0 | | |
| 140.172.3.162 | 2001-mlx8-eth-2-2.boulder.noaa.gov | 0 | | |
| 140.172.3.163 | ncep-fw-eth2.boulder.noaa.gov | 0 | | |
| 140.172.3.164 | gsd-brtr-boul-network.boulder.noaa.gov | 0 | | |
| 140.172.3.165 | gsd-3560-ext-g0-1.boulder.noaa.gov | 0 | | |
| 140.172.3.166 | brtr-boul-ge5-1-1.boulder.noaa.gov | 0 | | |
| 140.172.3.167 | — | 0 | | |
| 140.172.3.168 | gsd-brbr-bnoc-network.boulder.noaa.gov | 0 | | |
| 140.172.3.169 | gsd-3560-ext-g0-2.boulder.noaa.gov | 0 | | |
| 140.172.3.170 | brtr.bnoc-ge5-1-1.boulder.noaa.gov | 0 | | |
| 140.172.3.171 | — | 0 | | |
| 140.172.3.172 | nos-idp-network.boulder.noaa.gov | 0 | | |
| 140.172.3.173 | nos-idp-rtr.boulder.noaa.gov | 0 | | |
| 140.172.3.174 | nos-idp-host.boulder.noaa.gov | 0 | | |
| 140.172.3.175 | nos-idp-broadcast.boulder.noaa.gov | 0 | | |
| 140.172.3.176 | brtr.bnoc-ge-5-0-0.boulder.noaa.gov | 0 | | |
| 140.172.3.177 | rtr.boul-ge-0-1-9.boulder.noaa.gov | 0 | | |
| 140.172.3.178 | — | 0 | | |
| 140.172.3.179 | — | 0 | | |
| 140.172.3.180 | eumetsat-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.181 | dsrc-rtr-ge-5-1-9.boulder.noaa.gov | 0 | | |
| 140.172.3.182 | eumetsat-pc.boulder.noaa.gov | 0 | | |
| 140.172.3.183 | eumetsat-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.184 | n-wave-tertiary-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.185 | mdf-mlx8-eth-7-9.boulder.noaa.gov | 0 | | |
| 140.172.3.186 | n-wave-tertiary-2921-ge-0-1.boulder.noaa.gov | 0 | | |
| 140.172.3.187 | n-wave-tertiary-mdf-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.188 | n-wave-tertiary-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.189 | cosw01.boul01-ge-4-0-3.boulder.noaa.gov | 0 | | |
| 140.172.3.190 | n-wave-tertiary-2921-ge-0-0-0.boulder.noaa.gov | 0 | | |
| 140.172.3.191 | n-wave-tertiary-2001-bcast.boulder.noaa.gov | 0 | | |
| 140.172.3.192 | corpsrv-noc-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.193 | cosw01.boul01-irb-222.boulder.noaa.gov | 0 | | |
| 140.172.3.194 | cosw01.boul02-irb-222.boulder.noaa.gov | 0 | | |
| 140.172.3.195 | gb510-3560-corpsrv.boulder.noaa.gov | 0 | | |
| 140.172.3.196 | corpsrv-fw.boulder.noaa.gov | 0 | | |
| 140.172.3.197 | — | 0 | | |
| 140.172.3.198 | — | 0 | | |
| 140.172.3.199 | — | 0 | | |
| 140.172.3.200 | roc-tic-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.201 | mdf-mlx8-eth-2-5.boulder.noaa.gov | 0 | | |
| 140.172.3.202 | roc-fw.boulder.noaa.gov | 0 | | |
| 140.172.3.203 | — | 0 | | |
| 140.172.3.204 | mountain-tic-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.205 | brtr.boul-xe-5-3-1.boulder.noaa.gov | 0 | | |
| 140.172.3.206 | rtr.boul-xe-1-2-0.boulder.noaa.gov | 0 | | |
| 140.172.3.207 | — | 0 | | |
| 140.172.3.208 | class-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.209 | class-2001-mlx8.boulder.noaa.gov | 0 | | |
| 140.172.3.210 | 2001-mlx8-class.boulder.noaa.gov | 0 | | |
| 140.172.3.211 | — | 0 | | |
| 140.172.3.212 | — | 0 | | |
| 140.172.3.213 | class-mdf-mlx8.boulder.noaa.gov | 0 | | |
| 140.172.3.214 | mdf-mlx8-class.boulder.noaa.gov | 0 | | |
| 140.172.3.215 | — | 0 | | |
| 140.172.3.216 | 2001-rdhpcs-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.217 | 2001-mlx8-rdhpcs.boulder.noaa.gov | 0 | | |
| 140.172.3.218 | rdhpcs-fw-2001.boulder.noaa.gov | 0 | | |
| 140.172.3.219 | — | 0 | | |
| 140.172.3.220 | rdhpcs-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.221 | mdf-mlx8-rdhpcs.boulder.noaa.gov | 0 | | |
| 140.172.3.222 | rdhpcs-fw-mdf.boulder.noaa.gov | 0 | | |
| 140.172.3.223 | — | 0 | | |
| 140.172.3.224 | noc-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.225 | 2001-mlx8-7-19.boulder.noaa.gov | 0 | | |
| 140.172.3.226 | noc-fw-2001.boulder.noaa.gov | 0 | | |
| 140.172.3.227 | — | 0 | | |
| 140.172.3.228 | noc-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.229 | mdf-mlx8-noc.boulder.noaa.gov | 0 | | |
| 140.172.3.230 | noc-fw-mdf.boulder.noaa.gov | 0 | | |
| 140.172.3.231 | — | 0 | | |
| 140.172.3.232 | ngdc-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.233 | 2001-mlx8-ngdc.boulder.noaa.gov | 0 | | |
| 140.172.3.234 | ngdc-fw-2001.boulder.noaa.gov | 0 | | |
| 140.172.3.235 | — | 0 | | |
| 140.172.3.236 | ngdc-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.237 | mdf-mlx8-ngdc.boulder.noaa.gov | 0 | | |
| 140.172.3.238 | ngdc-fw-mdf.boulder.noaa.gov | 0 | | |
| 140.172.3.239 | — | 0 | | |
| 140.172.3.240 | esrl-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.241 | 2001-mlx8-esrl.boulder.noaa.gov | 0 | | |
| 140.172.3.242 | esrl-fw-2001.boulder.noaa.gov | 0 | | |
| 140.172.3.243 | — | 0 | | |
| 140.172.3.244 | esrl-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.245 | mdf-mlx8-esrl.boulder.noaa.gov | 0 | | |
| 140.172.3.246 | esrl-fw-mdf.boulder.noaa.gov | 0 | | |
| 140.172.3.247 | — | 0 | | |
| 140.172.3.248 | swpc-2001-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.249 | 2001-mlx8-swpc.boulder.noaa.gov | 0 | | |
| 140.172.3.250 | swpc-7606-2001.boulder.noaa.gov | 0 | | |
| 140.172.3.251 | — | 0 | | |
| 140.172.3.252 | swpc-mdf-subnet.boulder.noaa.gov | 0 | | |
| 140.172.3.253 | mdf-mlx8-swpc.boulder.noaa.gov | 0 | | |
| 140.172.3.254 | swpc-7606-mdf.boulder.noaa.gov | 0 | | |
| 140.172.3.255 | — | 0 | | |
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -f3 140.172.3.49
traceroute to 140.172.3.49 (140.172.3.49): 64 hops max, 52 byte packets
Measurement taken from 
IPinfo ProbeNet in Denver, US
IPinfo ProbeNet in Denver, USOn