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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51.9.0.0/16 - British Telecommunications PLC

Spam statistics 51.9.0.0/16 - British Telecommunications PLC

Country
United Kingdom
AS Number
Number of IPs
65536
Purpose of use
Unknown
Domain
-
Detected IP addresses
1825
Spam active IPs
23
Spam rate
1.26%

Spam activity log

— spam active IP adresses

WhoIs: 51.9.0.0/16

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IP Addresses in this range 51.9.0.0/16