Buying IPs with poor reputation

David Guo david at
Wed May 19 08:23:36 UTC 2021

Let's say normal IPs are $35, those blocked IPs may be $32, and you'll need much work to delist from all database.

xTom GmbH
From: NANOG < at> on behalf of Ross Tajvar <ross at>
Sent: Wednesday, May 19, 2021 4:20:14 PM
To: North American Network Operators' Group <nanog at>
Subject: Buying IPs with poor reputation

I'm curious if anyone has experience deliberately buying blacklisted blocks, or blocks that otherwise have poor reputation. Is there a significant price difference? How do you seek them out? Most of the sellers I've found seem to focus on blocks with good reputation, or on improving the reputation of a bad block. But I am interested in purchasing some IPs for internal services where reputation doesn't really matter.

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