I've got comments spam over the last few days. The spam is evidently from the same spambot, or even the same source, on the following IPs:
66.166.195.107 Covad Communications, San Jose CA
202.155.18.230 IndoSatNet, Jakarta, Indonesia
208.35.141.40 Sprint, Reston, VA (two separate times, same subnet)
205.218.254.250 Enitel, Nicaragua
195.172.92.251 EasyNet, London UK
Please advise, should I notify their abuse line, or handle this through Blacklist somehow? I've been simply banning, which is resulting in a rather long list of banned IPs.
Update:
209.184.246.199 Labette Community College, Plano TX