Alternatives to bgpmon?

[David Hubbard <dhubbard () dino hostasaurus com>]

Anyone have recommendations for an alternative service that works like bgpmon (external reachability/peer monitoring, 
route hijack alerts, etc)?  Since their OpenDNS acquisition, I’ve found the service not working reliably, as in I 
receive no alerts even when I’m intentionally taking one of our peers offline, and after two attempts to find out why 
this is, I receive no response, so it seems support is now broken as well.

Thanks,

David