Summary
| ASN | AS16 Lawrence Berkeley National Laboratory |
| BGP | 131.243.0.0/16 |
| IPs with RDNS | 111 |
| Hosted Domains | 0 |
| Pingable IPs | 2 |
| Router IPs | 0 |
| 131.243.21.0 | — | 0 | ||
| 131.243.21.1 | irpbx-n1--irpbx-30--vlan2481.hsrp.lbl.gov | 0 | ||
| 131.243.21.2 | vlan2481.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.3 | vlan2481.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.4 | — | 0 | ||
| 131.243.21.5 | aads-a.pbx.lbl.gov | 0 | ||
| 131.243.21.6 | aads-b.pbx.lbl.gov | 0 | ||
| 131.243.21.7 | util.aads.pbx.lbl.gov | 0 | ||
| 131.243.21.8 | util.aads-a.pbx.lbl.gov | 0 | ||
| 131.243.21.9 | util.aads-b.pbx.lbl.gov | 0 | ||
| 131.243.21.10 | aads.pbx.lbl.gov | 0 | ||
| 131.243.21.11 | — | 0 | ||
| 131.243.21.12 | — | 0 | ||
| 131.243.21.13 | — | 0 | ||
| 131.243.21.14 | — | 0 | ||
| 131.243.21.15 | — | 0 | ||
| 131.243.21.16 | — | 0 | ||
| 131.243.21.17 | irpbx-n1--irpbx-30--vlan2479.hsrp.lbl.gov | 0 | ||
| 131.243.21.18 | vlan2479.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.19 | vlan2479.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.20 | — | 0 | ||
| 131.243.21.21 | aes.pbx.lbl.gov | 0 | ||
| 131.243.21.22 | — | 0 | ||
| 131.243.21.23 | — | 0 | ||
| 131.243.21.24 | — | 0 | ||
| 131.243.21.25 | irpbx-n1--irpbx-30--vlan2478.hsrp.lbl.gov | 0 | ||
| 131.243.21.26 | vlan2478.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.27 | vlan2478.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.28 | — | 0 | ||
| 131.243.21.29 | cms.pbx.lbl.gov | 0 | ||
| 131.243.21.30 | — | 0 | ||
| 131.243.21.31 | — | 0 | ||
| 131.243.21.32 | — | 0 | ||
| 131.243.21.33 | irpbx-n1--irpbx-30--vlan2461.hsrp.lbl.gov | 0 | ||
| 131.243.21.34 | vlan2461.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.35 | vlan2461.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.36 | am-test.pbx.lbl.gov | 0 | ||
| 131.243.21.37 | — | 0 | ||
| 131.243.21.38 | weblm.pbx.lbl.gov | 0 | ||
| 131.243.21.39 | — | 0 | ||
| 131.243.21.40 | — | 0 | ||
| 131.243.21.41 | irpbx-n1--irpbx-30--vlan2462.hsrp.lbl.gov | 0 | ||
| 131.243.21.42 | vlan2462.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.43 | vlan2462.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.44 | — | 0 | ||
| 131.243.21.45 | — | 0 | ||
| 131.243.21.46 | — | 0 | ||
| 131.243.21.47 | — | 0 | ||
| 131.243.21.48 | — | 0 | ||
| 131.243.21.49 | irpbx-n1--irpbx-30--vlan2455.hsrp.lbl.gov | 0 | ||
| 131.243.21.50 | vlan2455.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.51 | vlan2455.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.52 | — | 0 | ||
| 131.243.21.53 | — | 0 | ||
| 131.243.21.54 | internal.e911lds.pbx.lbl.gov | 0 | ||
| 131.243.21.55 | — | 0 | ||
| 131.243.21.56 | — | 0 | ||
| 131.243.21.57 | irpbx-n1--irpbx-30--vlan2477.hsrp.lbl.gov | 0 | ||
| 131.243.21.58 | vlan2477.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.59 | vlan2477.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.60 | — | 0 | ||
| 131.243.21.61 | aams.pbx.lbl.gov | 0 | ||
| 131.243.21.62 | — | 0 | ||
| 131.243.21.63 | — | 0 | ||
| 131.243.21.64 | — | 0 | ||
| 131.243.21.65 | irpbx-n1--irpbx-30--vlan2480.hsrp.lbl.gov | 0 | ||
| 131.243.21.66 | vlan2480.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.67 | vlan2480.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.68 | — | 0 | ||
| 131.243.21.69 | — | 0 | ||
| 131.243.21.70 | — | 0 | ||
| 131.243.21.71 | — | 0 | ||
| 131.243.21.72 | — | 0 | ||
| 131.243.21.73 | irpbx-n1--irpbx-30--vlan2475.hsrp.lbl.gov | 0 | ||
| 131.243.21.74 | vlan2475.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.75 | vlan2475.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.76 | — | 0 | ||
| 131.243.21.77 | ol-voice.pbx.lbl.gov | 0 | ||
| 131.243.21.78 | — | 0 | ||
| 131.243.21.79 | — | 0 | ||
| 131.243.21.80 | — | 0 | ||
| 131.243.21.81 | irpbx-n1--irpbx-30--vlan2474.hsrp.lbl.gov | 0 | ||
| 131.243.21.82 | vlan2474.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.83 | vlan2474.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.84 | — | 0 | ||
| 131.243.21.85 | ol-voice-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.86 | — | 0 | ||
| 131.243.21.87 | — | 0 | ||
| 131.243.21.88 | — | 0 | ||
| 131.243.21.89 | irpbx-n1--irpbx-30--vlan2473.hsrp.lbl.gov | 0 | ||
| 131.243.21.90 | vlan2473.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.91 | vlan2473.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.92 | — | 0 | ||
| 131.243.21.93 | sm-a.pbx.lbl.gov | 0 | ||
| 131.243.21.94 | — | 0 | ||
| 131.243.21.95 | — | 0 | ||
| 131.243.21.96 | — | 0 | ||
| 131.243.21.97 | irpbx-n1--irpbx-30--vlan2472.hsrp.lbl.gov | 0 | ||
| 131.243.21.98 | vlan2472.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.99 | vlan2472.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.100 | — | 0 | ||
| 131.243.21.101 | sip.sm-a.pbx.lbl.gov | 0 | ||
| 131.243.21.102 | — | 0 | ||
| 131.243.21.103 | — | 0 | ||
| 131.243.21.104 | — | 0 | ||
| 131.243.21.105 | irpbx-n1--irpbx-30--vlan2471.hsrp.lbl.gov | 0 | ||
| 131.243.21.106 | vlan2471.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.107 | vlan2471.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.108 | — | 0 | ||
| 131.243.21.109 | sm-b.pbx.lbl.gov | 0 | ||
| 131.243.21.110 | — | 0 | ||
| 131.243.21.111 | — | 0 | ||
| 131.243.21.112 | — | 0 | ||
| 131.243.21.113 | irpbx-n1--irpbx-30--vlan2470.hsrp.lbl.gov | 0 | ||
| 131.243.21.114 | vlan2470.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.115 | vlan2470.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.116 | — | 0 | ||
| 131.243.21.117 | sip.sm-b.pbx.lbl.gov | 0 | ||
| 131.243.21.118 | — | 0 | ||
| 131.243.21.119 | — | 0 | ||
| 131.243.21.120 | — | 0 | ||
| 131.243.21.121 | irpbx-n1--irpbx-30--vlan2469.hsrp.lbl.gov | 0 | ||
| 131.243.21.122 | vlan2469.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.123 | vlan2469.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.124 | — | 0 | ||
| 131.243.21.125 | smgr.pbx.lbl.gov | 0 | ||
| 131.243.21.126 | — | 0 | ||
| 131.243.21.127 | — | 0 | ||
| 131.243.21.128 | — | 0 | ||
| 131.243.21.129 | irpbx-n1--irpbx-30--vlan2468.hsrp.lbl.gov | 0 | ||
| 131.243.21.130 | vlan2468.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.131 | vlan2468.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.132 | — | 0 | ||
| 131.243.21.133 | smgr-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.134 | — | 0 | ||
| 131.243.21.135 | — | 0 | ||
| 131.243.21.136 | — | 0 | ||
| 131.243.21.137 | irpbx-n1--irpbx-30--vlan2467.hsrp.lbl.gov | 0 | ||
| 131.243.21.138 | vlan2467.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.139 | vlan2467.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.140 | — | 0 | ||
| 131.243.21.141 | slamon.pbx.lbl.gov | 0 | ||
| 131.243.21.142 | — | 0 | ||
| 131.243.21.143 | — | 0 | ||
| 131.243.21.144 | — | 0 | ||
| 131.243.21.145 | irpbx-n1--irpbx-30--vlan2463.hsrp.lbl.gov | 0 | ||
| 131.243.21.146 | vlan2463.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.147 | vlan2463.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.148 | — | 0 | ||
| 131.243.21.149 | — | 0 | ||
| 131.243.21.150 | — | 0 | ||
| 131.243.21.151 | — | 0 | ||
| 131.243.21.152 | — | 0 | ||
| 131.243.21.153 | — | 0 | ||
| 131.243.21.154 | — | 0 | ||
| 131.243.21.155 | — | 0 | ||
| 131.243.21.156 | — | 0 | ||
| 131.243.21.157 | — | 0 | ||
| 131.243.21.158 | — | 0 | ||
| 131.243.21.159 | — | 0 | ||
| 131.243.21.160 | — | 0 | ||
| 131.243.21.161 | irpbx-n1--irpbx-30--vlan2464.hsrp.lbl.gov | 0 | ||
| 131.243.21.162 | vlan2464.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.163 | vlan2464.irpbx-30.lbl.gov | 0 | ||
| 131.243.21.164 | — | 0 | ||
| 131.243.21.165 | — | 0 | ||
| 131.243.21.166 | voice.primary.ol-cnsl.pbx.lbl.gov | 0 | ||
| 131.243.21.167 | voice.secondary.ol-cnsl.pbx.lbl.gov | 0 | ||
| 131.243.21.168 | — | 0 | ||
| 131.243.21.169 | ixm-web-cnsl-a.pbx.lbl.gov | 0 | ||
| 131.243.21.170 | ixm-web-cnsl-b.pbx.lbl.gov | 0 | ||
| 131.243.21.171 | — | 0 | ||
| 131.243.21.172 | — | 0 | ||
| 131.243.21.173 | — | 0 | ||
| 131.243.21.174 | — | 0 | ||
| 131.243.21.175 | — | 0 | ||
| 131.243.21.176 | — | 0 | ||
| 131.243.21.177 | — | 0 | ||
| 131.243.21.178 | — | 0 | ||
| 131.243.21.179 | — | 0 | ||
| 131.243.21.180 | — | 0 | ||
| 131.243.21.181 | — | 0 | ||
| 131.243.21.182 | — | 0 | ||
| 131.243.21.183 | — | 0 | ||
| 131.243.21.184 | — | 0 | ||
| 131.243.21.185 | irpbxgeo-977--irpbx-n1--vlan2493.hsrp.lbl.gov | 0 | ||
| 131.243.21.186 | vlan2493.irpbxgeo-977.lbl.gov | 0 | ||
| 131.243.21.187 | vlan2493.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.188 | — | 0 | ||
| 131.243.21.189 | sip.sm-c.pbx.lbl.gov | 0 | ||
| 131.243.21.190 | — | 0 | ||
| 131.243.21.191 | — | 0 | ||
| 131.243.21.192 | — | 0 | ||
| 131.243.21.193 | irpbxgeo-977--irpbx-n1--vlan2494.hsrp.lbl.gov | 0 | ||
| 131.243.21.194 | vlan2494.irpbxgeo-977.lbl.gov | 0 | ||
| 131.243.21.195 | vlan2494.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.196 | — | 0 | ||
| 131.243.21.197 | sm-c.pbx.lbl.gov | 0 | ||
| 131.243.21.198 | — | 0 | ||
| 131.243.21.199 | — | 0 | ||
| 131.243.21.200 | — | 0 | ||
| 131.243.21.201 | irpbxgeo-977--irpbx-n1--vlan2495.hsrp.lbl.gov | 0 | ||
| 131.243.21.202 | vlan2495.irpbxgeo-977.lbl.gov | 0 | ||
| 131.243.21.203 | vlan2495.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.204 | — | 0 | ||
| 131.243.21.205 | a1.sbc-sp-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.206 | — | 0 | ||
| 131.243.21.207 | — | 0 | ||
| 131.243.21.208 | — | 0 | ||
| 131.243.21.209 | irpbxgeo-977--irpbx-n1--vlan2496.hsrp.lbl.gov | 0 | ||
| 131.243.21.210 | vlan2496.irpbxgeo-977.lbl.gov | 0 | ||
| 131.243.21.211 | vlan2496.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.212 | — | 0 | ||
| 131.243.21.213 | a1.sbc-iw-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.214 | — | 0 | ||
| 131.243.21.215 | — | 0 | ||
| 131.243.21.216 | — | 0 | ||
| 131.243.21.217 | irpbxgeo-977--irpbx-n1--vlan2497.hsrp.lbl.gov | 0 | ||
| 131.243.21.218 | vlan2497.irpbxgeo-977.lbl.gov | 0 | ||
| 131.243.21.219 | vlan2497.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.220 | — | 0 | ||
| 131.243.21.221 | — | 0 | ||
| 131.243.21.222 | — | 0 | ||
| 131.243.21.223 | — | 0 | ||
| 131.243.21.224 | — | 0 | ||
| 131.243.21.225 | irpbxgeo-977--irpbx-n1--vlan2498.hsrp.lbl.gov | 0 | ||
| 131.243.21.226 | vlan2498.irpbxgeo-977.lbl.gov | 0 | ||
| 131.243.21.227 | vlan2498.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.228 | — | 0 | ||
| 131.243.21.229 | — | 0 | ||
| 131.243.21.230 | — | 0 | ||
| 131.243.21.231 | — | 0 | ||
| 131.243.21.232 | — | 0 | ||
| 131.243.21.233 | — | 0 | ||
| 131.243.21.234 | — | 0 | ||
| 131.243.21.235 | — | 0 | ||
| 131.243.21.236 | — | 0 | ||
| 131.243.21.237 | mgmt.sbc10-sp-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.238 | mgmt.sbc10-iw-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.239 | — | 0 | ||
| 131.243.21.240 | — | 0 | ||
| 131.243.21.241 | irpbxgeo-977--irpbx-n1--vlan2499.hsrp.lbl.gov | 0 | ||
| 131.243.21.242 | vlan2499.irpbxgeo-977.lbl.gov | 0 | ||
| 131.243.21.243 | vlan2499.irpbx-n1.lbl.gov | 0 | ||
| 131.243.21.244 | — | 0 | ||
| 131.243.21.245 | — | 0 | ||
| 131.243.21.246 | cm-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.247 | procr.cm-geo.pbx.lbl.gov | 0 | ||
| 131.243.21.248 | — | 0 | ||
| 131.243.21.249 | — | 0 | ||
| 131.243.21.250 | — | 0 | ||
| 131.243.21.251 | — | 0 | ||
| 131.243.21.252 | — | 0 | ||
| 131.243.21.253 | — | 0 | ||
| 131.243.21.254 | — | 0 | ||
| 131.243.21.255 | — | 0 |
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -m11 131.243.21.47
traceroute to 131.243.21.47 (131.243.21.47): 11 hops max, 52 byte packets
2 *
3 *
4 *
9 *
10 *
11 *
Measurement taken from
IPinfo ProbeNet in Santa Clara, US
On