CleanTalk keeps track of the IP addresses in spam messages, to help Hosting and ISP companies to know about suspicious activity in the address space of a company. The presence of IP addresses in this list, it is an occasion to start audit server security that uses a particular address.
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AS1742 HARVARD-UNIV

Spam statistics of AS1742 HARVARD-UNIV

Country
United States
Number of networks
IP Addresses
Purpose of use
Domain
-
Detected IP addresses
463
Spam active IPs
20
Spam rate
4.32%
Websites count
203
IP addresses with websites
58

Spam activity log

— spam active IP adresses

WhoIs AS: as1742

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Detected networks prefixes

#Network prefixCountryLengthDetected IP addressesSpam active IP addressesSpam rate
1206.253.200.0/21United States204813969.23%
2206.191.184.0/21United States20489888.89%
365.112.0.0/20United States409610022.00%
4128.103.0.0/16United States6553616610.60%
567.134.204.0/22United States1024900.00%
6131.142.0.0/16United States655361600.00%
7140.247.0.0/16United States6553615500.00%
8192.131.102.0/24United States256100.00%