assignment policy is documented in:
        
        RIPE NCC members can request AS Numbers using the
form available in the LIR Portal or at:
        
****************************************************
        Information about the RIPE Database can be found at:
        http://www.ripe.net/db/index.html
****************************************************

BGP Community support definitions:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

15725:20   do not announce to AS5400
15725:2x   prepend (x) when announced to AS5400
15725:30   do not announce to AS12931
15725:3x   prepend (x) when announced to AS12931
15725:40   do not announce to AS3209
15725:4x   prepend (x) when announced to AS3209
15725:50   do not announce to AS13237
15725:5x   prepend (x) when announced to AS13237
15725:60   do not announce to AS49885
15725:6x   prepend (x) when announced to AS49885
15725:70   do not announce to AS16097
15725:7x   prepend (x) when announced to AS16097



The above information was collected from whois.ripe.net, using
object "AS15725" on July 15, 2010