from lg.he.net:

core1.fmt1.he.net> show ip bgp routes detail 46.0.0.0/8
Number of BGP Routes matching display condition : 1
       S:SUPPRESSED F:FILTERED s:STALE
1       Prefix: 46.0.0.0/8,  Status: BI,  Age: 10h37m29s
         NEXT_HOP: 216.66.87.162, Metric: 1869, Learned from Peer: 216.218.252.169 (6939)
          LOCAL_PREF: 140,  MED: 20,  ORIGIN: igp,  Weight: 0
         AS_PATH: 5541
            COMMUNITIES: 6939:1001 6939:1002 6939:1510 6939:1000
       Last update to IP routing table: 10h37m29s, 1 path(s) installed:
# Entry cached for another 60 seconds.

2013/12/20 Stephane Bortzmeyer <bortzmeyer@nic.fr>

On Fri, Dec 20, 2013 at 11:59:13AM +0100,
 Lukasz Trabinski <lukasz@wsisiz.edu.pl> wrote

 a message of 20 lines which said:

> I know that is not related with RIPE atlas, but maybe do know where
> to report in RIPE BGP hijacking topic?

Apparently, they did not went too far? RIPE stat does not see them
(yet?).

Neither does the looking glass of the upstream
<http://bgp.he.net/AS5541#_prefixes>