Avantel Contact Information

Does anyone have a technical or peering contact at Avantel who can address
an apparent netblock hijacking issue?

It seems that Avantel is advertising the address space to
their peers but they are unable to route to it for some reason.
Level3's customers can though, and so can a whole bunch of the rest of the
internet. Without posting all my traceroutes and route-views I'll just ask
first as I'm sure there is a way to resolve this peacefully =]

Any suggestions?