removing entry in routing table

[Geordie Birch <geordie@gmail.com>]

  I'm trying to delete an entry from the routing table:

$ /sbin/route
Kernel IP routing table
Destination        Gateway           Genmask             Flags Metric 
Ref    Use Iface
207.216.243.171 -                      255.255.255.255   !H      0    
     -        0 -
207.6.224.0        *                      255.255.224.0      U       0
        0        0 eth0
default               d207-6-224-254. 0.0.0.0                UG    0  
      0        0 eth0

$ sudo route del 207.216.243.171
SIOCDELRT: No such process

  Any ideas as to what I'm doing wrong?

  Thanks,

  Geordie.