Has spam factory dakotacom.net moved from ACSI to Alternet ?

I've been receiving buckets of spam from dakotacom.net, as many as 90 per day. They've been connected to ACSI for many months. ACSI has a new anti-spam AUP that went into effect today. Today I see that traceroutes to Dakotacom go through Alternet and medic-net-gw.customer.ALTER.NET. But the route looks odd, maybe a leak rather than a new real route. I don't speak BGP (my multi-homed ISP does that for me), so can anyone see who's announcing 207.201.204.0/255.255.252.0 ? ACSI? Alternet? Both? Regards, John Levine, postmaster@abuse.net, http://www.abuse.net, Trumansburg NY abuse.net postmaster