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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4.0.0.0/9 - Level 3 Parent, LLC

Spam statistics 4.0.0.0/9 - Level 3 Parent, LLC

Country
United States
AS Number
Number of IPs
8388608
Purpose of use
Unknown
Domain
-
Detected IP addresses
3089
Spam active IPs
58
Spam rate
1.88%

Spam activity log

— spam active IP adresses

WhoIs: 4.0.0.0/9

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IP Addresses in this range 4.0.0.0/9