Problems with newish IP block assignment issues from ARIN

Job Snijders job at
Mon Feb 8 20:46:39 UTC 2021

Dear Justin,

On Mon, Feb 08, 2021 at 03:14:47PM -0500, Justin Wilson (Lists) wrote:
> It acts like the IP block was blacklisted at some point and got on
> some bad lists but I don’t want ti limit myself to that theory.
> I have opened up a ticket with ARIN asking for any guidance. Has
> anyone ran into this with new space assigned? Any tools, sites, etc. I
> can use to do further troubleshooting.  

Here are some useful tools:
    good introduction here:

> The block in question is 

Is there any specific IP address in the range that should always respond
to ICMP Echo Requests? This will help others see if they can reach you
or not.

> It has been RPKI certified and has IRR entries.

Indeed, nice :-)

Kind regards,


More information about the NANOG mailing list