irc.synchro.net is an Internet Relay Chat network of Synchronet BBSes running the Synchronet IRC Service (Cyan's ircd.js).
Among other things, it is the home of the Synchronet support IRC channel, #synchronet.
irc.synchro.net is actually a revolving hostname which resolves to one of the (currently 32) IRC services in the network. These services are usually listening for IRC client connections on TCP port 6667, potentially in addition to other TCP ports.
If you find that you have been banned from the network, you may have accidentally been caught up when removing a bot infestation. If you receive a message that you have been banned or akilled when logging into one of the Synchronet IRC servers please email sysop@endofthelinebbs.com or netmail sysop@1:124/5016 with the subjected of “IRC BANNED” and the following details:
Without all those details, we cannot investigate.