Problems with RIPE database

Hello,

One of our program which automatically generates route objects
in the RIPE database crashes because of a 'strange' answer of
the ripe database.

I have recently allocated the following block 194.254.220.0 - 194.254.235.0
for one of our site. So the object generated in the RIPE database is:

 inetnum:     194.254.220.0 - 194.254.235.0
 ...

So when I make the following request:

 whois 194.254.220.0 I get:
 
 inetnum:     194.254.220.0 - 194.254.235.0

I get the same answer for the following addresses: 194.254.220,221,222...227

However, If I do:

 whois 194.254.228.0 I get:

 inetnum:     194.254.0.0 - 194.254.255.255

I get the same answer for the following addresses: 194.254.228,229...235
while I should get: inetnum: 194.254.220 - 194.254.235.0.

(The whole block 194.254.0.0-194.254.255.0 belongs to Renater, and I allocate IP
numbers from this block to our sites)
So, as one of our program automatically generates route objects, It works fine for
the first 8 addresses :

route:       194.254.220.0/24
...
route:       194.254.221.0/24
...
route:       194.254.222.0/24 ....

but it does not generate any route objects for the other addresses, because instead
of generating 194.254.228.0/24 it tries to generate a route object for 
194.254.0.0-194.254.255.255

Do you have any explanations for this problem ?

Thanks for your help.

Franck SIMON
RENATER