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Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?)


From: Mike via NANOG <nanog () lists nanog org>
Date: Tue, 27 Jan 2026 17:10:48 +0000 (UTC)

 In fact, geolocation providers should be using geofeed data as tier 1 data since they are self published.  Are you 
saying you know more about my prefixes than me? 
    On Tuesday, January 27, 2026 at 07:03:45 AM PST, Ca By via NANOG <nanog () lists nanog org> wrote:  
 
 On Mon, Jan 26, 2026 at 11:47 PM Abdullah DevRel of IPinfo via NANOG <
nanog () lists nanog org> wrote:

Geofeeds are useful because they cut out the middleman in terms of geo
info, and provide a mechanism for someone to detect and react to that
change quickly, since a very large use case for these is targeted content
and advertising.

I work for IPinfo. We use active measurements for IP geolocation as a
primary source of data. We consider geofeeds as a second-tier source of
information. We use it as a fallback data source when active measurements
fail.

The honest reality is that geofeed does not provide verification metadata
of any form.


The “honest reality”, as you say, is that geolocation firms like yours have
failed to provide reliable data to paying customers for years.


That is why the IETF made geofeeds.

My customers started having outages because geolocation firms have bad
data, and enterprises use that bad data in firewall and cdn rules which
cause outages. For example, geolocation firms provide data that a customer
IP is in xyz country but the firewall rules only allow abc country…

Anyhow, as a person who publishes geofeed data representing 100s of
millions of users, please …everyone… publish and consume first party
geofeed data and do not listen to FUD from people trying to sell you the
same data that we publish for free.


They can be stale, wrong, or false, and maintaining them is a pain for ASN
providers. Many large telecoms do not even have publicly accessible
geofeed. For example, AS11260 (Eastlink.ca) does not have a publicly
accessible geofeed to my knowledge, and I am not sure who to reach out to
get one. Not all ASNs are going to publish geofeeds, and it is fine.

Providing IP geolocation data has real value, and I do not believe it is
the ASN or ISP's responsibility to have their data accurately reflected on
third-party IP geolocation providers like us.

The ideal operation that we have is this: we do IP geolocation based on
building networks of servers running active measurements, working with
ASNs, attending conferences and talking with as many ASNs and range
operators as possible. Shake as many hands as possible. It sounds
borderline impossible, but honestly, that is the only fair way to operate
as an IP geolocation provider.

If, in any case, an ASN does not want to help us, that is fine, but that
does not excuse negligence on our part towards end users. Our
responsibility is towards end users (the customers of ASNs; internet users)
and ASNs can be just voluntary partners. The moment an ASN, ISP, or an end
user has an issue, we have to jump into the conversation and fix the issue.

That is why I am here. There is a mention of the word "geolocation" in the
NANOG forum, and we have to come here and ask if everything is okay. Do you
have any issues with us? Can you check your data with us? Can you help us
fix the issue?

This MO of IP geolocation as a service should be: aggressive outreach. But
we also have to admit that we are not the only provider, and we are not
even the largest provider out there. But we do not care, we have to be
responsible to everyone. We have to back our data.

— Abdullah | DevRel, IPinfo

https://www.linkedin.com/in/reincoder/
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