We recently went through this. After looking around for a bit I found good prices with both IPTrading.com and IPv4Auctions.com. I ended up going with IPv4 auctions.com. The purchasing process was pretty painless, however before I did that I went through the ARIN pre-approval process which was their standard annoying level of verification. It took probably 4-5 weeks for the whole process (ARIN pre-approval, purchase, seller transfer time).
I did some careful research on the available blocks from both vendors to try to make sure they weren't used for SPAM (and also simply asked the sellers). ARIN has a VERY helpful tool for this called a WhoWas report which you can use to dig into the history of the block. Joel Mulkey Founder and CEO Bigleaf Networks Direct: +1 (503) 985-6964 | Support: +1 (503) 985-8298 | www.bigleaf.net > On Oct 22, 2015, at 7:24 AM, Clay Curtis <clay...@gmail.com> wrote: > > I work for a VAR and we are starting to have customers come to us to help > with internet redundancy projects and they are unable to get address space > from ARIN. What are the viable options here? I have read about secondary > markets, transfers, auction sites, leasing, etc. Can NANOG point me in the > right direction as to the most effective way to get v4 space right now in > the US? And before we get into the whole IPv6 discussion, yes, yes, we are > discussing this with customers as well. That being said, they still need > the IPv4 space in the near-term. > > Thanks all, > > > Clay Curtis