Call me crazy, but route-views.oregon-ix.net is showing IBM announcing 0/7.
The history entries you quoted do, in fact, show that AS2628 announced
0/7.
Furthermore, Abovenet is propagating it.
I've forwarded your mail to our NOC and cc'd you so you'll have the
address for future reference; it could also serve as a handy template
for sending mail to the NOCs of the other networks that passed on the
announcement should you choose to contact them (I count eight, but you
can consider AS3557 notified, so seven).
This can't be right.
AS Network From Flaps Duration Reuse Path
h 0.0.0.0/7 202.249.2.86 8 01:34:10 7500 2516 6461 2686
h 157.130.182.254 76 14:25:44 19092 6461 2686
h 204.152.184.126 83 14:25:46 3557 6461 2686
h 207.126.96.1 94 14:25:58 6461 2686
h 193.0.0.56 100 14:26:07 3333 1103 2686
h 212.4.193.253 144 19:11:50 8918 2686
h 213.200.87.254 263 19:12:05 3257 2686
*d 195.66.224.82 476 1d23h 00:15:10 4513 3344 15643
*d 192.157.69.27 679 2d18h 00:10:10 4513 3344 15643
*d 198.32.162.18 657 2d18h 00:15:40 4513 3344 15643
Stephen