[as112-ops] Discovering AS112 nodes via RIPE Atlas

[Barry O'Donovan]

Curiosity got the better of me reading the home.arpa thread on how many
AS112 nodes actually exist.

Using all 8,331 RIPE Atlas probes with criteria: connected, ipv4-works,
dns-a-works, has asnv4 and ipv4 stable >= 1 day, I found 69 nodes.

These probes were asked to do a TXT IPv4 DNS lookup against
hostname.as112.net targeting the as112 anycast address of 192.175.48.6.

See attached csv where column 1 is the number of probes using that node
and the remaining columns are the TXT records for the above query.

The top 16 (>100 probes) are:

Probes - Node
1379 - AS112 node of IN-Berlin e.V.
730 - Hivane Networks, Paris, FR
691 - RIPE NCC, Amsterdam, The Netherlands
362 - Widgets, Pty Ltd KK GmbH LLC Inc (?)
313 - ClueTrust (AS16668), Ashburn, VA, USA
306 - DE-CIX Management GmbH Frankfurt am Main, Germany
270 - Goscomb Technologies Limited, London, GB
196 - IPACCT Ltd. AS112 Instance Sofia, BG
181 - Phyxia Networks, Brussels, Belgium, Europe
163 - NIX.CZ, Neutral Internet eXchange of Czech Republic
149 - Truenetwork Novosibirsk, Russia
145 - AS112 at Giganet-IX
125 - Afilias Global Registry Services
116 - WIDE Project Osaka, Japan
109 - MMTS-9 Moscow, Russia (MSK)
105 - AS112 node Frankfurt2 of Opteamax GmbH, Rheinbreitbach, Germany


Some of the above may have multiple nodes reported the exact same TXT
records ;_(


All of this is just FYI.

I may try and tidy the scripts into something more usable...

 - Barry


PS: measurement results (batches of 1000 probes):

https://atlas.ripe.net/api/v2/measurements/10488976/results/
https://atlas.ripe.net/api/v2/measurements/10488994/results/
https://atlas.ripe.net/api/v2/measurements/10488995/results/
https://atlas.ripe.net/api/v2/measurements/10489000/results/
https://atlas.ripe.net/api/v2/measurements/10489001/results/
https://atlas.ripe.net/api/v2/measurements/10489002/results/
https://atlas.ripe.net/api/v2/measurements/10489005/results/
https://atlas.ripe.net/api/v2/measurements/10489009/results/



-- 

Kind regards,
Barry O'Donovan
INEX Operations

https://www.inex.ie/support/
+353 1 531 3339



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