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Re: 172.0.0.0/12 has been Allocated
From: Owen DeLong <owen () delong com>
Date: Wed, 22 Aug 2012 23:29:49 -0700

AT&T should just be glad there was a /12 for them to get.

That isn't going to be true for much longer.

If you are counting on an IPv4 free pool to run your business next year, you are making a bad bet.

Owen

On Aug 22, 2012, at 22:54 , "Otis L. Surratt, Jr." <otis () ocosa com> wrote:

My apologies again, I saw it as 127.0.0.0. and not 172.0.0.0.

I've been working long hours last couple nights. Yeah you are probably right, since they to pulled that one very 
close to RFC1918.

http://bgp.potaroo.net/ipv4-stats/allocated-arin.html


I would hate to be AT&T for this IP allocation. Heck, I would simple push more IPv6 if I were them.



-----Original Message-----
From: Dan White [mailto:dwhite () olp net] 
Sent: Thursday, August 23, 2012 12:37 AM
To: Otis L. Surratt, Jr.
Cc: nanog () nanog org
Subject: Re: 172.0.0.0/12 has been Allocated

You can do a whois search at arin.net to see the allocation.

172.0.0.0/12 is often confused with the private 172.16.0.0/12 address
space, which I would consider a 'scraping the bottom of the barrel'
allocation.

I also noticed a couple of subnets in that range showing up in the weekly
Cidr reports, beginning in July.

On 08/23/12 00:29 -0500, Otis L. Surratt, Jr. wrote:
Dan,

Can you provide a link to support this?
If this is true, I wonder how this will work.

Otis
-----Original Message-----
From: Dan White [mailto:dwhite () olp net]
Sent: Thursday, August 23, 2012 12:24 AM
To: nanog () nanog org
Subject: 172.0.0.0/12 has been Allocated

172.0.0.0-172.15.255.255 was allocated on 2012-08-20 to AT&T Internet
Services.

-- 
Dan White



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