Cogent v6 Blackhole server issues???

[John Von Essen <john () essenz com>]

2 days ago my IPv6 BGP session to Cogent's Blackhole server went down 
(2001:550:0:1000::421C:802), I've spent all morning emailing their NOC 
and I'm getting nowhere. Anyone else seeing this? Im in the Phila Metro 
area.

-John