QUOTE
Since my host (and others out there) have a very tight control on port 80, they require me to specify IPs to un-block. If you are using a news-feed like that it would be very helpful if the IP address was disclosed in an obvious way.
MT isn't requesting the news feed by IP - it's getting it by requesting the following URL:
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http://www.movabletype.org/news/newsbox.html
Doing a traceroute to movabletype.org, the last hop is the following:
CODE
serge.sixapart.com [66.216.96.146]
I don't know if this is good enough for what you need, but there it is.