..Networking Guides..

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Grabmyip->Networking Guides->BitTorrent Port Range

What ports does BitTorrent use?

By default, BitTorrent uses ports 6881-6999. These are TCP ports and not UDP. So if you are configuring your router, allow the range of 6881-6999 TCP.

If you are having trouble connecting to a BitTorrent Tracker, make sure that your BitTorrent can connect to 6969 outbound. Other tracks use different ports. Just something to be aware of.

See also:
Port Forwarding
Our General BitTorrent Guide

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