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tracepath from 192.170.227.163 (uct2-net3.mwt2.org) to 23.21.4.239 (ec2-23-21-4-239.compute-1.amazonaws.com) for 23.21.4.239

CGI script maintainer: Les Cottrell, SLAC. Script version 7.7, 8/9/2018, Les Cottrell.
Download perl source code.
To perform a traceroute/ping/tracepath function from uct2-net3.mwt2.org 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 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 uct2-net3.mwt2.org 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(/bin/tracepath  23.21.4.239)
 1?: [LOCALHOST]                                         pmtu 9000
 1:  scidmz-mwt2.mwt2.uchicago.edu                         1.170ms 
 1:  scidmz-mwt2.mwt2.uchicago.edu                         1.145ms 
 2:  192.170.224.122                                       0.477ms asymm  3 
 3:  et-11-0-5.2011.rtsw.chic.net.internet2.edu            1.352ms asymm  4 
 4:  ae-9.4070.rtsw3.eqch.net.internet2.edu                1.366ms asymm  5 
 5:  ae-9.4070.rtsw3.eqch.net.internet2.edu                1.549ms pmtu 1500
 5:  99.82.179.52                                          1.485ms asymm  7 
 6:  52.93.249.131                                         8.591ms asymm 10 
 7:  52.95.62.125                                          1.526ms asymm  8 
 8:  no reply
 9:  52.93.129.122                                        20.823ms asymm 24 
10:  150.222.242.130                                      19.993ms asymm 23 
11:  no reply
12:  150.222.242.118                                      19.961ms asymm 23 
13:  no reply
14:  no reply
15:  150.222.243.209                                      19.772ms asymm 18 
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
25:  no reply
26:  52.93.29.48                                          19.827ms asymm 10 
27:  no reply
28:  52.93.29.44                                          19.550ms asymm 10 
29:  no reply
30:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500