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List:       dns-operations
Subject:    Re: [dns-operations] Some issues with Google's recursive servers
From:       Viktor Dukhovni <ietf-dane () dukhovni ! org>
Date:       2022-01-26 17:15:42
Message-ID: YfGBvs444dkYtwwD () straasha ! imrryr ! org
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On Wed, Jan 26, 2022 at 08:52:12AM -0800, Damian Menscher via dns-operations wrote:

> Well, they were half right:
> 
> 172.253.5.0/25 hkg
> 172.253.5.128/25 mad
> 
> Locations are published at
> https://developers.google.com/speed/public-dns/faq#locations

The latest MaxMinds GeoIP country dataset reports, for example:

    IP and Google location   MaxMinds GeoIP
    ----------------------   -------------
    172.253.3.0/25   nrt     JP, Japan
    172.253.3.128/25 lbg     JP, Japan
    172.253.4.0/25   hkg     HK, Hong Kong
    172.253.4.128/25 lbg     HK, Hong Kong
    172.253.5.0/25   hkg     HK, Hong Kong
    172.253.5.128/25 mad     HK, Hong Kong
    172.253.6.0/25   hkg     HK, Hong Kong
    172.253.6.128/25 nrt     JP, Japan

Only the last pair matches the Google data in both halves of the /24.
Neither LBG (Paris) nor MAD (Madrid) are in HK.

-- 
	Viktor.
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