Internet Routing Registries - RADb, etc

Eric Krichbaum eric at
Wed Jan 15 23:30:11 UTC 2014

I 100% agree with Nick.  But, in dealing with Level3, you need Level3 Members Remarks in your objects to deal with multiple registries etc.  They have an ok system that is a nightmare to pull from different datasources with them and they've churned the ultimately responsible individual a few times which makes it tough to get someone knowledgeable.  Larry and team however at RADB will respond to remove your entries from someone else's stale records without much hassle.

Cogent will use your IRR data to generate a list the first time but they don't have a clue when it comes to keeping up to date.

The underlying problem is that there is incentive to enter objects (or have them entered for you) but none to remove old/stale/incorrect objects.


-----Original Message-----
From: Nick Hilliard [mailto:nick at] 
Sent: Wednesday, January 15, 2014 3:31 PM
To: Blake Hudson; nanog at
Subject: Re: Internet Routing Registries - RADb, etc

On 15/01/2014 21:22, Blake Hudson wrote:
> I have emailed Level3 about the incorrect entries in their IRR with no 
> response. I have also emailed Cogent about their incorrect entry in 
> RADb, also with no response.
> Should I be concerned about these entries? Do these entries give 
> someone the ability to announce our IP space? How is the information 
> in these databases checked for accuracy and why did RADb and Level3 
> put these entries in their database when the posting party was not 
> authorized to announce this space? And finally, what can be done to 
> correct or remove these entries (as a non-customer of either RADb or Level3)?

It depends.  Most organisations do not use IRRDBs for compiling prefix lists, but some do.  If you happen to get service from one of these organisations, it's better to ensure that the prefixes are correctly registered.  Lots of European IXPs use IRRDBs for route-server prefix filter lists, but this may not be relevant to you.

Level3 fills their IRRDB up with piles of crap.  Good luck getting them to remove anything.

RADB is well run, and if Cogent can't get their act together enough to remove the entries from there, you can email Merit directly
(radb-support at and they can delete stuff, assuming that source:
is RADB and you can prove that you legitimately hold the address space.


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