This page was last updated in December 2015 and is accurate for router version 0.9.19.

These are the ports used or reserved by I2P, including those for known plugins, common alternates, and some typical related applications.

Note that many of these are not enabled by default. There is more information in the FAQ. See also the documentation for individual plugins. Plugin authors please add any ports you use here. For new plugins, we recommend using the next available port in the 766x range.

PortUsage
123SNTP
1900UPnP SSDP UDP multicast listener
2827BOB Bridge
3456Tahoe-LAFS-Controller Plugin
3458Tahoe-LAFS-Controller Plugin
3459Tahoe-LAFS-Controller Plugin
4444HTTP Proxy
4445HTTPS Proxy
4691Monotone Server (reserve)
6667IRC Proxy (alt)
6668IRC Proxy
6669IRC Proxy (alt)
7650I2PControl Plugin
7651UPnP (alt - retries going down)
7652UPnP HTTP TCP event listener
7653UPnP SSDP UDP search response listener
7654I2CP
7655SAM Bridge (UDP)
7656SAM Bridge (TCP)
7657Router Console
7658Eepsite
7659SMTP Proxy
7660POP Proxy
7661Pebble Plugin
7661I2PBote Plugin SMTP
7662Zzzot Plugin
7662I2PBote Plugin IMAP
7663?? Plugin ??
7664JAMWiki Plugin
recommended spot for new plugins/applications
7668Eepsite SSL
8118Privoxy (reserve)
8123Tor Polipo (reserve)
8887Old default network port
8888Freenet (reserve)
8997Monotone Proxy (alt)
8998Monotone Proxy
8999Monotone Proxy (alt)
9050Tor SOCKS Proxy (reserve)
9051-9053SOCKS Proxy (typ)
9152-9153Tor Messenger Socks and Control ports (reserve)
9111-30777Network (random)
11371SKS/GPG Key Server (reserve)
31000Wrapper
31001-31999Wrapper (alt - retries going up)
32000Wrapper
65534Neodatis Plugin