The block message is 521 DNSRBL: Blocked for abuse

David Miller dmiller at
Thu Sep 19 00:40:17 UTC 2013

On 9/18/2013 8:16 PM, Tammy Firefly wrote:
> On 9/18/13 6:10 PM, David Miller wrote:
>> On 9/18/2013 7:30 PM, Andrew D Kirch wrote:
>>> On 9/18/2013 7:15 PM, Tammy Firefly wrote:
>>>> On 9/18/13 5:07 PM, Andrew D Kirch wrote:
>>>>> On 9/18/2013 6:55 PM, Tammy Firefly wrote:
>>>>>>> I used to run the AHBL and ARIN used to contact us when
>>>>>>> they recycled IP space.  We always removed when contacted
>>>>>>> by ARIN.
>>>>>>> Andrew
>>>>>> ARIN hasnt contacted us for this since i've been involved
>>>>>> with the ahbl for ~5 years. just a FYI.
>>>>> Well, it'd seem we found the problem then.
>>>>> Andrew
>>>> Ive know ARIN is a problem for a lotta years andrew :P  When
>>>> we contacted them and asked them to do it again we got told its
>>>> against policies blablablabla.
>>> (replying to list with Tammy's permission) This is pathetic.
>>> ARIN is supposed to be working as a steward of this IP space.
>>> When you have policies that make it more difficult to use the IP
>>> space this isn't even remotely close to stewardship. It's
>>> pathetic, with the policy making a quick turn around of releasing
>>> old IP space when you get an allocation, that ARIN is leaving
>>> innocent third parties who have paid ARIN large sums of money for
>>> this space. ARIN, frankly you can suck it.  It's time to grow up
>>> and behave how you were intended to.
>>> Andrew
>> If only there was a way for anyone to get a daily report of number 
>> resource allocations...
>>  First link.
>> -DMM
> Those also are statistics not actual IP block numbers being
> deallocated/allocated.

The Status Reports (PDFs) down the page are statistics, updated quarterly.

At the top of the page is the delegated-extended daily report.

"The file delegated-extended contains a daily updated report of the
distribution of Internet number resources.

The resources reported are:

IPv4 address ranges (IPv4)
IPv6 address ranges (IPv6)
Autonomous System Numbers (ASNs)"

That file is text.

The lines for IPv4 look like:

The Readme file explains the fields:

4th field is start IP
5th field is number of IPs in block
6th field is date of allocation/assignment

I would think that file might be parsed, compared to RBL listings, and
if listing date (or last bad behavior date) < allocation/assignment date
- then remove listing.


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