Thanks to Hugo and Andy for their replies.
I suspected as much.  Hopefully Hampshire County Council will sort 
themselves out -- apparently they were 'in talks with TalkTalk' 
according to my sources.  It seems that there shouldn't really be much 
to discuss though.
The 'firehol' firewall that I use on my server reminds me every 90 days 
to update the IANA-supplied list of unallocated IP addresses.  Obviously 
HCC haven't been doing that.
cheers
Chris
-- 
Chris Dennis                                  cgdennis@???
Fordingbridge, Hampshire, UK