Summary
| ASN | AS16 Lawrence Berkeley National Laboratory |
| BGP | 131.243.0.0/16 |
| IPs with RDNS | 140 |
| Hosted Domains | 0 |
| Pingable IPs | 22 |
| Router IPs | 40 |
| 131.243.245.0 | vlan711.cr1-n1.lbl.gov | 0 |  | |
| 131.243.245.1 | et-1-0-2-711.irals-15-2.lbl.gov | 0 | | |
| 131.243.245.2 | vlan713.cr2-59.lbl.gov | 0 | | |
| 131.243.245.3 | et-2-1-2-713.irals-15-2.lbl.gov | 0 |  | |
| 131.243.245.4 | vlan725.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.5 | et-1-0-2-725.irals-15-2.lbl.gov | 0 | | |
| 131.243.245.6 | vlan727.cr2-59.lbl.gov | 0 | | |
| 131.243.245.7 | et-2-1-2-727.irals-15-2.lbl.gov | 0 | | |
| 131.243.245.8 | vlan899.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.9 | et-2-0-2-299.iralsbl-15.lbl.gov | 0 | | |
| 131.243.245.10 | vlan901.cr2-59.lbl.gov | 0 | | |
| 131.243.245.11 | et-2-1-2-901.iralsbl-15.lbl.gov | 0 | | |
| 131.243.245.12 | irb-604.irals-15-2.lbl.gov | 0 | | |
| 131.243.245.13 | irb-604.iralsbl-15.lbl.gov | 0 | | |
| 131.243.245.14 | vlan715.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.15 | et-2-0-2-715.irz2-n2-2.lbl.gov | 0 | | |
| 131.243.245.16 | — | 0 | | |
| 131.243.245.17 | — | 0 | | |
| 131.243.245.18 | — | 0 | | |
| 131.243.245.19 | — | 0 | | |
| 131.243.245.20 | vlan719.cr2-59.lbl.gov | 0 | | |
| 131.243.245.21 | et-2-1-2-719.irz2-n2-2.lbl.gov | 0 | | |
| 131.243.245.22 | et-0-0-3-1134.secr-59-core.lbl.gov | 0 | | |
| 131.243.245.23 | vlan1134.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.24 | et-0-0-1-1136.secr-59-core.lbl.gov | 0 | | |
| 131.243.245.25 | vlan1136.cr2-59.lbl.gov | 0 | | |
| 131.243.245.26 | irb-806.irz2-n2-2.lbl.gov | 0 | | |
| 131.243.245.27 | irb-806.irz2-30-2.lbl.gov | 0 | | |
| 131.243.245.28 | et-1-1-5-1140.er2-59.lbl.gov | 0 | | |
| 131.243.245.29 | et-0-0-4-1140.secr-59-core.lbl.gov | 0 | | |
| 131.243.245.30 | vlan792.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.31 | et-2-0-2-792.irz2-30-2.lbl.gov | 0 | | |
| 131.243.245.32 | et-3-1-5-1172.er2-59.lbl.gov | 0 | | |
| 131.243.245.33 | et-0-0-1-1172.secr-59-scidmz.lbl.gov | 0 | | |
| 131.243.245.34 | vlan1143.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.35 | vlan1143.cr2-59.lbl.gov | 0 | | |
| 131.243.245.36 | vlan1149.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.37 | vlan1149.cr2-59.lbl.gov | 0 | | |
| 131.243.245.38 | lt-0-0-0-4.secr-59-scidmz.lbl.gov | 0 | | |
| 131.243.245.39 | lt-0-0-0-14.lhcone.secr-59-scidmz.lbl.gov | 0 | | |
| 131.243.245.40 | et-0-0-0-1153.srlbl-n1-2.lbl.gov | 0 | | |
| 131.243.245.41 | vlan1153.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.42 | et-0-0-0-1155.srlbl-n2-2.lbl.gov | 0 | | |
| 131.243.245.43 | vlan1155.cr2-59.lbl.gov | 0 | | |
| 131.243.245.44 | irb-1205.irpbxgeo-977-2.lbl.gov | 0 | | |
| 131.243.245.45 | irb-1205.j34s-978-4002-pbx-g0h.lbl.gov | 0 | | |
| 131.243.245.46 | vlan1207.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.47 | xe-0-0-6-1207.irpbx-n1-2.lbl.gov | 0 | | |
| 131.243.245.48 | vlan1209.cr2-59.lbl.gov | 0 | | |
| 131.243.245.49 | xe-0-0-7-1209.irpbx-n1-2.lbl.gov | 0 | | |
| 131.243.245.50 | irb-1211.irpbx-n1-2.lbl.gov | 0 | | |
| 131.243.245.51 | irb-1211.irpbx-30-2.lbl.gov | 0 | | |
| 131.243.245.52 | vlan1213.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.53 | xe-0-0-6-1213.irpbx-30-2.lbl.gov | 0 | | |
| 131.243.245.54 | vlan1215.cr2-59.lbl.gov | 0 | | |
| 131.243.245.55 | xe-0-0-7-1215.irpbx-30-2.lbl.gov | 0 | | |
| 131.243.245.56 | vlan1217.cr2-59.lbl.gov | 0 | | |
| 131.243.245.57 | xe-0-0-0-1217.irpbxgeo-977-2.lbl.gov | 0 | | |
| 131.243.245.58 | vlan1219.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.59 | xe-0-0-1-1219.irpbxgeo-977-2.lbl.gov | 0 | | |
| 131.243.245.60 | — | 0 | | |
| 131.243.245.61 | — | 0 | | |
| 131.243.245.62 | — | 0 | | |
| 131.243.245.63 | — | 0 | | |
| 131.243.245.64 | — | 0 | | |
| 131.243.245.65 | — | 0 | | |
| 131.243.245.66 | — | 0 | | |
| 131.243.245.67 | — | 0 | | |
| 131.243.245.68 | — | 0 | | |
| 131.243.245.69 | — | 0 | | |
| 131.243.245.70 | — | 0 | | |
| 131.243.245.71 | — | 0 | | |
| 131.243.245.72 | vlan1157.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.73 | et-0-0-0-1157.srncem-n3.lbl.gov | 0 | | |
| 131.243.245.74 | vlan1159.cr2-59.lbl.gov | 0 | | |
| 131.243.245.75 | et-0-0-1-1159.srncem-n3.lbl.gov | 0 | | |
| 131.243.245.76 | — | 0 | | |
| 131.243.245.77 | — | 0 | | |
| 131.243.245.78 | — | 0 | | |
| 131.243.245.79 | — | 0 | | |
| 131.243.245.80 | — | 0 | | |
| 131.243.245.81 | — | 0 | | |
| 131.243.245.82 | — | 0 | | |
| 131.243.245.83 | — | 0 | | |
| 131.243.245.84 | — | 0 | | |
| 131.243.245.85 | — | 0 | | |
| 131.243.245.86 | — | 0 | | |
| 131.243.245.87 | — | 0 | | |
| 131.243.245.88 | vlan1059.cr2-59.lbl.gov | 0 | | |
| 131.243.245.89 | et-0-0-0-1059.ir977-2.lbl.gov | 0 | | |
| 131.243.245.90 | vlan878.cr2-59.lbl.gov | 0 | | |
| 131.243.245.91 | et-2-1-2-878.irz2-30-2.lbl.gov | 0 | | |
| 131.243.245.92 | — | 0 | | |
| 131.243.245.93 | — | 0 | | |
| 131.243.245.94 | vlan882.irals-15.lbl.gov | 0 | | |
| 131.243.245.95 | vlan882.irals-15-bl.lbl.gov | 0 | | |
| 131.243.245.96 | — | 0 | | |
| 131.243.245.97 | — | 0 | | |
| 131.243.245.98 | — | 0 | | |
| 131.243.245.99 | — | 0 | | |
| 131.243.245.100 | vlan905.irals.lbl.gov | 0 | | |
| 131.243.245.101 | vlan905.irals-15.lbl.gov | 0 | | |
| 131.243.245.102 | — | 0 | | |
| 131.243.245.103 | — | 0 | | |
| 131.243.245.104 | — | 0 | | |
| 131.243.245.105 | — | 0 | | |
| 131.243.245.106 | vlan891.irpbxgeo-977.lbl.gov | 0 | | |
| 131.243.245.107 | vlan891.j34s-978-4002-pbx-g0h.lbl.gov | 0 | | |
| 131.243.245.108 | irb-892.ir978-2.lbl.gov | 0 | | |
| 131.243.245.109 | vlan892.j34s-978-4002-pbx-g0h.lbl.gov | 0 | | |
| 131.243.245.110 | et-0-0-0-956.er1-n1.lbl.gov | 0 | | |
| 131.243.245.111 | et-0-0-0-956.er2-59.lbl.gov | 0 | | |
| 131.243.245.112 | — | 0 | | |
| 131.243.245.113 | — | 0 | | |
| 131.243.245.114 | — | 0 | | |
| 131.243.245.115 | — | 0 | | |
| 131.243.245.116 | xe-0-1-2-974.dev-mx204-50b-2275-c5-1.lbl.gov | 0 | | |
| 131.243.245.117 | xe-0-1-2-974.dev-mx204-50b-2275-c5-2.lbl.gov | 0 | | |
| 131.243.245.118 | et-0-0-2-2279.secr-n1-scidmz.lbl.gov | 0 | | |
| 131.243.245.119 | et-0-0-0-2279.srlbl-n1-2.lbl.gov | 0 | | |
| 131.243.245.120 | et-0-0-2-2281.secr-59-scidmz.lbl.gov | 0 | | |
| 131.243.245.121 | et-0-0-0-2281.srlbl-n2-2.lbl.gov | 0 | | |
| 131.243.245.122 | et-0-0-1-2283.srlbl-n1-2.lbl.gov | 0 | | |
| 131.243.245.123 | et-0-0-1-2283.srlbl-n2-2.lbl.gov | 0 | | |
| 131.243.245.124 | ae0-2289.er1-n1.lbl.gov | 0 | | |
| 131.243.245.125 | xe-0-1-0-2289.wr1-n1-2.lbl.gov | 0 | | |
| 131.243.245.126 | ae0-2291.er2-59.lbl.gov | 0 | | |
| 131.243.245.127 | xe-0-1-0-2291.wr2-59.lbl.gov | 0 | | |
| 131.243.245.128 | ae0-1001.er1-n1.lbl.gov | 0 | | |
| 131.243.245.129 | xe-0-0-13-0-1001.erdev1-50b.lbl.gov | 0 | | |
| 131.243.245.130 | vlan1003.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.131 | xe-0-1-0-1003.ir915-2.lbl.gov | 0 | | |
| 131.243.245.132 | vlan1005.cr2-59.lbl.gov | 0 | | |
| 131.243.245.133 | xe-0-1-1-1005.ir915-2.lbl.gov | 0 | | |
| 131.243.245.134 | ae0-1007.er2-59.lbl.gov | 0 | | |
| 131.243.245.135 | xe-0-1-0-1007.erdev2-50b.lbl.gov | 0 | | |
| 131.243.245.136 | ae0-1017.er2-59.lbl.gov | 0 | | |
| 131.243.245.137 | et-0-0-5-1017.erdev1-50b.lbl.gov | 0 | | |
| 131.243.245.138 | ae0-1027.srals-15.lbl.gov | 0 | | |
| 131.243.245.139 | irb-1027.srlbl-n1-2.lbl.gov | 0 | | |
| 131.243.245.140 | ae1-1029.srals-15.lbl.gov | 0 | | |
| 131.243.245.141 | irb-1029.srlbl-n1-2.lbl.gov | 0 | | |
| 131.243.245.142 | ae0-1031.srals-15.lbl.gov | 0 | | |
| 131.243.245.143 | irb-1031.srlbl-n2-2.lbl.gov | 0 | | |
| 131.243.245.144 | ae1-1033.srals-15.lbl.gov | 0 | | |
| 131.243.245.145 | irb-1033.srlbl-n2-2.lbl.gov | 0 | | |
| 131.243.245.146 | et-0-0-2-1057.er1-n1.lbl.gov | 0 | | |
| 131.243.245.147 | et-0-0-0-1057.secr-n1-core.lbl.gov | 0 | | |
| 131.243.245.148 | — | 0 | | |
| 131.243.245.149 | — | 0 | | |
| 131.243.245.150 | et-0-0-6-1061.er1-n1.lbl.gov | 0 | | |
| 131.243.245.151 | et-0-0-2-1061.secr-59-core.lbl.gov | 0 | | |
| 131.243.245.152 | vlan1118.cr2-59.lbl.gov | 0 | | |
| 131.243.245.153 | xe-0-1-0-1118.ir977-2.lbl.gov | 0 | | |
| 131.243.245.154 | et-0-0-2-1065.er2-59.lbl.gov | 0 | | |
| 131.243.245.155 | et-0-0-0-1065.secr-59-core.lbl.gov | 0 | | |
| 131.243.245.156 | et-0-0-3-1067.er2-59.lbl.gov | 0 | | |
| 131.243.245.157 | et-0-0-0-1067.secr-59-scidmz.lbl.gov | 0 | | |
| 131.243.245.158 | et-0-0-6-1069.er2-59.lbl.gov | 0 | | |
| 131.243.245.159 | et-0-0-2-1069.secr-n1-core.lbl.gov | 0 | | |
| 131.243.245.160 | et-5-2-2-1071.er2-59.lbl.gov | 0 | | |
| 131.243.245.161 | vlan1071.cr2-59.lbl.gov | 0 | | |
| 131.243.245.162 | vlan1073.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.163 | et-0-0-2-1073.ircore-n1.lbl.gov | 0 | | |
| 131.243.245.164 | vlan1075.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.165 | et-0-0-2-1075.ircore-91.lbl.gov | 0 | | |
| 131.243.245.166 | vlan1077.cr2-59.lbl.gov | 0 | | |
| 131.243.245.167 | et-0-0-3-1077.ircore-n1.lbl.gov | 0 | | |
| 131.243.245.168 | vlan1079.cr2-59.lbl.gov | 0 | | |
| 131.243.245.169 | et-0-0-3-1079.ircore-91.lbl.gov | 0 | | |
| 131.243.245.170 | irb-1081.ircore-n1.lbl.gov | 0 | | |
| 131.243.245.171 | irb-1081.ircore-91.lbl.gov | 0 | | |
| 131.243.245.172 | vlan1088.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.173 | et-2-0-2-1088.irz3-67-2.lbl.gov | 0 | | |
| 131.243.245.174 | vlan1090.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.175 | et-2-0-2-1090.irz3-n3-2.lbl.gov | 0 | | |
| 131.243.245.176 | vlan1092.cr2-59.lbl.gov | 0 | | |
| 131.243.245.177 | et-2-1-2-1092.irz3-67-2.lbl.gov | 0 | | |
| 131.243.245.178 | vlan1094.cr2-59.lbl.gov | 0 | | |
| 131.243.245.179 | et-2-1-2-1094.irz3-n3-2.lbl.gov | 0 | | |
| 131.243.245.180 | irb-1096.irz3-67-2.lbl.gov | 0 | | |
| 131.243.245.181 | irb-1096.irz3-n3-2.lbl.gov | 0 | | |
| 131.243.245.182 | vlan1063.cr1-n1.lbl.gov | 0 | | |
| 131.243.245.183 | xe-0-1-1-1063.ir977-2.lbl.gov | 0 | | |
| 131.243.245.184 | — | 0 | | |
| 131.243.245.185 | — | 0 | | |
| 131.243.245.186 | — | 0 | | |
| 131.243.245.187 | — | 0 | | |
| 131.243.245.188 | — | 0 | | |
| 131.243.245.189 | — | 0 | | |
| 131.243.245.190 | — | 0 | | |
| 131.243.245.191 | — | 0 | | |
| 131.243.245.192 | — | 0 | | |
| 131.243.245.193 | — | 0 | | |
| 131.243.245.194 | — | 0 | | |
| 131.243.245.195 | — | 0 | | |
| 131.243.245.196 | — | 0 | | |
| 131.243.245.197 | — | 0 | | |
| 131.243.245.198 | — | 0 | | |
| 131.243.245.199 | — | 0 | | |
| 131.243.245.200 | — | 0 | | |
| 131.243.245.201 | — | 0 | | |
| 131.243.245.202 | — | 0 | | |
| 131.243.245.203 | — | 0 | | |
| 131.243.245.204 | — | 0 | | |
| 131.243.245.205 | — | 0 | | |
| 131.243.245.206 | — | 0 | | |
| 131.243.245.207 | — | 0 | | |
| 131.243.245.208 | — | 0 | | |
| 131.243.245.209 | — | 0 | | |
| 131.243.245.210 | — | 0 | | |
| 131.243.245.211 | — | 0 | | |
| 131.243.245.212 | — | 0 | | |
| 131.243.245.213 | — | 0 | | |
| 131.243.245.214 | — | 0 | | |
| 131.243.245.215 | — | 0 | | |
| 131.243.245.216 | — | 0 | | |
| 131.243.245.217 | — | 0 | | |
| 131.243.245.218 | — | 0 | | |
| 131.243.245.219 | — | 0 | | |
| 131.243.245.220 | — | 0 | | |
| 131.243.245.221 | — | 0 | | |
| 131.243.245.222 | — | 0 | | |
| 131.243.245.223 | — | 0 | | |
| 131.243.245.224 | — | 0 | | |
| 131.243.245.225 | — | 0 | | |
| 131.243.245.226 | — | 0 | | |
| 131.243.245.227 | — | 0 | | |
| 131.243.245.228 | — | 0 | | |
| 131.243.245.229 | — | 0 | | |
| 131.243.245.230 | — | 0 | | |
| 131.243.245.231 | — | 0 | | |
| 131.243.245.232 | — | 0 | | |
| 131.243.245.233 | — | 0 | | |
| 131.243.245.234 | — | 0 | | |
| 131.243.245.235 | — | 0 | | |
| 131.243.245.236 | — | 0 | | |
| 131.243.245.237 | — | 0 | | |
| 131.243.245.238 | — | 0 | | |
| 131.243.245.239 | — | 0 | | |
| 131.243.245.240 | — | 0 | | |
| 131.243.245.241 | — | 0 | | |
| 131.243.245.242 | — | 0 | | |
| 131.243.245.243 | — | 0 | | |
| 131.243.245.244 | — | 0 | | |
| 131.243.245.245 | — | 0 | | |
| 131.243.245.246 | — | 0 | | |
| 131.243.245.247 | — | 0 | | |
| 131.243.245.248 | — | 0 | | |
| 131.243.245.249 | — | 0 | | |
| 131.243.245.250 | — | 0 | | |
| 131.243.245.251 | — | 0 | | |
| 131.243.245.252 | — | 0 | | |
| 131.243.245.253 | — | 0 | | |
| 131.243.245.254 | — | 0 | | |
| 131.243.245.255 | — | 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 131.243.245.156
traceroute to 131.243.245.156 (131.243.245.156): 64 hops max, 52 byte packets
4 *
5 *
6 *
Measurement taken from 
IPinfo ProbeNet in San Jose, US
IPinfo ProbeNet in San Jose, USOn