IRC is not down, but the domain name is. I am having issues renewing it, as I cannot get into the domain registrar account and am trying to work with support to get around this issue.
Until I can resolve this, you can connect via IP address:
192.95.40.1
Same ports (7001, +7010)
I have edited the OP and my first post in this thread to reflect the IP address.
I apologize for the inconvenience, and will get this sorted as soon as I can. Thanks for bearing with me.