Cogent v6 Blackhole server issues???

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.


Out of St. Louis, mine has been up since the last reboot of my router.

2001:550:0:1000::421c:802 is my peering..

Dennis Burgess, Mikrotik Certified Trainer
Author of "Learn RouterOS- Second Edition”
Link Technologies, Inc -- Mikrotik & WISP Support Services
Office: 314-735-0270 Website:
Create Wireless Coverage’s with

Looks like they finally fixed it.. it just sporadically came back up. My v4 and v6 transit sessions were never effected. Who knows...