this post was submitted on 08 Sep 2025
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A bit convoluted but you can using peeringdb.com to get the AS number of their networks then look that AS up in bgp.tools.
https://www.peeringdb.com/org/8896
Microsoft have 4 ASN with 8075 being the largest one.
https://bgp.tools/as/8075#prefixes
The only problem with this method is you may catch some other orgs who host their IPs with Azure like Avaya (the PBX and handset company)
Bulk data is here: https://www.ris.ripe.net/dumps/RISwhoisdump.IPv4.gz or IPv6
It's a daily updated summary of all RIPE's BGP probes feeds. Most IPs have more than one entry. You should take a majority vote - use the entry with the highest count - because there's no single BGP authority - many ISPs show different data from each other.
Thank you @WarmApplePieShrek@lemmy.dbzer0.com Are you sure your link is correct ? I get