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All About IPv4 Blacklisting

The blacklisting of IP addresses is a common occurrence on today’s internet. Most of us have encountered networking attacks in one form or another, ranging from obnoxious spam emails to crippling malware, phishing or ransomware attacks. Their path to your computer starts from a device on the internet operating behind an IP address.  Who helps...
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Transfers of IPv4 Addresses from /8s Held by One Organization

In 2011, as Nortel's Director of Engineering I started the orchestration of the sale of Nortel's 47.0.0.0/8.  Over time this undertaking has resulted in the sale of approximately 85% of the /8.  Something that has been discussed in the ensuing six years, is how many other “organization” or “company” owned /8s might ultimately be sold.  IPv4...
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