Stanford University seal SLAC logo, click here to learn more about SLAC

traceroute from 207.98.67.188 (klfl-perf1.nero.net) to 54.144.21.195 (ec2-54-144-21-195.compute-1.amazonaws.com) for 54.144.21.195

CGI script maintainer: Les Cottrell, SLAC. Script version 7.0, 7/30/2016, Les Cottrell.
Download perl source code.
To perform a traceroute/ping/tracepath function from klfl-perf1.nero.net to the target, enter the desired target host.domain (e.g. www.yahoo.com) or Internet address (e.g. 137.138.28.228) in the box below. Note the fucntion is performed for the target's resolved Internet address.
Enter target name or address: then push 'Enter' key.
Lookup: domain name | Locating a Host | visual traceroute | Find AS's between hosts | Find AS of a host | contacting someone
Related web sites
Traceroute servers,
Monitoring tutorial,
Internet monitoring
What is my IP address?
Please note that traceroutes can appear similar to port scans. If you see a suspected port scan alert, for example from your firewall, with a series of ports in the range 33434 - 33465, coming from klfl-perf1.nero.net it is probably a reverse traceroute from our web based reverse traceroute server. Please do NOT report this to us, it will almost certainly be a waste of both of our times. For more on this see
Traceroute security issues.
Executing exec(traceroute -m 30 -q 3 54.144.21.195 140)
traceroute to 54.144.21.195 (54.144.21.195), 30 hops max, 140 byte packets
 1  klfl-car1-gw.nero.net (207.98.67.177)  0.141 ms  0.120 ms  0.132 ms
 2  eugn-p2-gw.nero.net (207.98.64.68)  5.759 ms  5.791 ms  5.769 ms
 3  ptck-p2-gw.nero.net (207.98.64.21)  8.842 ms  8.825 ms  8.806 ms
 4  ptck-core1-gw.nero.net (207.98.64.171)  7.144 ms  7.159 ms  7.175 ms
 5  internet2-re-seat-gw.oregon-gigapop.net (198.32.165.125)  10.100 ms  10.120 ms  10.104 ms
 6  et-4-0-0.4079.sdn-sw.miss2.net.internet2.edu (162.252.70.0)  20.670 ms  20.709 ms  20.698 ms
 7  et-4-0-0.4079.sdn-sw.minn.net.internet2.edu (162.252.70.58)  43.911 ms  43.869 ms  43.871 ms
 8  et-7-0-0.4079.sdn-sw.eqch.net.internet2.edu (162.252.70.106)  51.709 ms  51.736 ms  51.700 ms
 9  et-2-3-0.4079.rtsw.clev.net.internet2.edu (162.252.70.130)  60.729 ms  60.737 ms  60.727 ms
10  et-2-0-0.4079.sdn-sw.ashb.net.internet2.edu (162.252.70.54)  68.305 ms  68.307 ms  68.321 ms
11  et-1-0-0.4079.rtr.ashb.net.internet2.edu (162.252.70.69)  67.975 ms  67.922 ms  67.936 ms
12  64.57.30.3 (64.57.30.3)  67.947 ms 64.57.30.39 (64.57.30.39)  68.113 ms  67.997 ms
13  * * *
14  * * *
15  54.239.110.145 (54.239.110.145)  72.140 ms 54.239.110.149 (54.239.110.149)  93.849 ms 54.239.110.141 (54.239.110.141)  131.064 ms
16  54.239.111.17 (54.239.111.17)  68.997 ms 54.239.108.233 (54.239.108.233)  69.115 ms 54.239.111.19 (54.239.111.19)  69.036 ms
17  72.21.222.155 (72.21.222.155)  68.943 ms * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *
traceroute -m 30 -q 3 54.144.21.195 140 took 16secs. Total time=16secs. user=apache