Provider Traceroute Pages

Trace from just about anywhere to just about anywhere else at traceroute.org.

For information about reading and understanding traceroute output, see my traceroute tutorial page.

NOTE: If you have firewall software installed on your computer, or you are behind a firewall, a reverse traceroute may not complete properly. If you have firewall software such as Norton Internet Security set to “prompt me” mode, it will result in you being bombarded with alert messages about inbound UDP communications unless you disable the firewall before proceeding.